Classifications

• • G—PHYSICS
  • G02—OPTICS
  • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
  • G02B5/00—Optical elements other than lenses
  • G02B5/20—Filters
  • G02B5/28—Interference filters
  • G02B5/285—Interference filters comprising deposited thin solid films
• • C—CHEMISTRY; METALLURGY
  • C03—GLASS; MINERAL OR SLAG WOOL
  • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
  • C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
  • C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
  • C03C17/36—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
• • C—CHEMISTRY; METALLURGY
  • C03—GLASS; MINERAL OR SLAG WOOL
  • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
  • C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
  • C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
  • C03C17/36—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
  • C03C17/3602—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer
  • C03C17/3613—Coatings of type glass/inorganic compound/metal/inorganic compound/metal/other
• • C—CHEMISTRY; METALLURGY
  • C03—GLASS; MINERAL OR SLAG WOOL
  • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
  • C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
  • C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
  • C03C17/36—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
  • C03C17/3602—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer
  • C03C17/3626—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer one layer at least containing a nitride, oxynitride, boronitride or carbonitride
• • C—CHEMISTRY; METALLURGY
  • C03—GLASS; MINERAL OR SLAG WOOL
  • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
  • C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
  • C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
  • C03C17/36—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
  • C03C17/3602—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer
  • C03C17/3634—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer one layer at least containing carbon, a carbide or oxycarbide
• • C—CHEMISTRY; METALLURGY
  • C03—GLASS; MINERAL OR SLAG WOOL
  • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
  • C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
  • C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
  • C03C17/36—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
  • C03C17/3602—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer
  • C03C17/3639—Multilayers containing at least two functional metal layers
• • C—CHEMISTRY; METALLURGY
  • C03—GLASS; MINERAL OR SLAG WOOL
  • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
  • C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
  • C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
  • C03C17/36—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
  • C03C17/3602—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer
  • C03C17/3644—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer the metal being silver
• • C—CHEMISTRY; METALLURGY
  • C03—GLASS; MINERAL OR SLAG WOOL
  • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
  • C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
  • C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
  • C03C17/36—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
  • C03C17/3602—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer
  • C03C17/3649—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer made of metals other than silver
• • C—CHEMISTRY; METALLURGY
  • C03—GLASS; MINERAL OR SLAG WOOL
  • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
  • C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
  • C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
  • C03C17/36—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
  • C03C17/3602—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer
  • C03C17/3657—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer the multilayer coating having optical properties
• • C—CHEMISTRY; METALLURGY
  • C03—GLASS; MINERAL OR SLAG WOOL
  • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
  • C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
  • C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
  • C03C17/36—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
  • C03C17/3602—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer
  • C03C17/3681—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer the multilayer coating being used in glazing, e.g. windows or windscreens
• • C—CHEMISTRY; METALLURGY
  • C03—GLASS; MINERAL OR SLAG WOOL
  • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
  • C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
  • C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
  • C03C17/36—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
  • C03C17/3602—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer
  • C03C17/3684—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer the multilayer coating being used for decoration purposes
• • C—CHEMISTRY; METALLURGY
  • C03—GLASS; MINERAL OR SLAG WOOL
  • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
  • C03C2217/00—Coatings on glass
  • C03C2217/70—Properties of coatings
  • C03C2217/72—Decorative coatings

Definitions

• the present invention is in the technical field of interferentially colored glass substrates.
• the invention relates to a glass substrate interferential coloring for facing panel and its manufacturing process and its use.
• the interferentially colored glass substrate for facing panel referred to in the present invention may more particularly be used as a glass substrate for facade cladding panel, also called a spandrel.
• the spandrel according to the present invention is more particularly in the form of a single sheet monolithic spandrel. It can alternatively be used as a decorative cladding panel, or even as a decorative reflective panel, for interior or exterior applications such as shelf elements, cupboard, door, ceiling lamp, support, glass table, wall lamp, partition, storefront,. ..
• An interferentially colored glass substrate for a cladding panel generally consists of a glass sheet on which is deposited a stack of coatings among which there are at least three different types of coatings:
• Protective coatings usually made of transparent dielectric materials, whose role is to provide chemical and / or mechanical protection for coatings functional, is to allow the construction of optical cavities
• At least one coating enamel or paint ensuring the opacity or quasi-opacity of the stack of coatings, the enamel coating or paint being deposited, with respect to the glass sheet, at the top of the stack of coatings.
• the colorimetric contribution of enamel or paint coating ensuring the opacity or quasi-opacity of the coating stack is mainly due to its chemical composition.
• the term "interferential coloration” is intended to denote a coloration obtained wholly or mainly by reflection and refraction phenomena of the light incident on the various thin coatings constituting the stack of coatings.
• colorimetric contribution is meant the contribution to the color of the glass substrate perceived by an observer.
• opacity or quasi-opacity of said stack is meant that the light transmission rate is at most 4%, preferably at most 2%, more preferably at most 1.0 %, most preferably at most 0.1%, when said stack is applied to a 4 mm thick clear silico-sodo-calcium float glass, measured with a source in accordance with the illuminant "daylight” »Standardized D65 by CIE and at a solid angle of 2 °, according to EN410 standard.
• the interferentially colored glass substrate for facing panel may more particularly be used as a glass substrate for facade cladding panel, also called a spandrel, the spandrel is more particularly in the form of a single sheet monolithic spandrel.
• a fully glazed façade includes two areas, a viewing area corresponding to the locations of the windows and an opaque area typically corresponding to facade cladding panels, also called lighters.
• the facade cladding panels are in fact made of glass sheets which are opaque or quasi-opaque.
• the opacity or quasi-opacity of the glass sheets is provided by an enamel coating or a paint.
• Facade cladding panels because of their opacity or near-opacity are generally used to conceal or mask all or part of the non-aesthetic parts of a structure or building.
• facade cladding panels can be used to conceal floor slabs, equipment for air-conditioning installations, heating ducts, etc.
• Facade cladding panels are installed to reasons of costs and congestion, directly on the structure or the building to be covered. Such an installation causes increased problems of corrosion of the stack of coatings of the interferentially colored glass substrate constituting the facade cladding panel. It is therefore required a durability of the stack of coatings of the interferentially colored glass substrate constituting the facade cladding panel. This requirement of durability is both a physicochemical requirement, related to quenching and insensitivity to chemical and atmospheric agents (for example corrosion resistance), a mechanical requirement, related to the resistance claws for example when storing, handling or installing facade cladding panels.
• the quenching process consists in bringing the glass to an elevated temperature, higher than 600 ° C., followed by a rapid temperature drop so as to create mechanical stresses inside the glass.
• the quenching of the glass sheet constituting the interferentially colored glass substrate for facade cladding panel is not performed prior to the manufacture of said substrate but directly on it. It is therefore necessary that all the materials constituting the glass substrate to Interferential staining constituting the facade cladding panel supports the quenching process.
• the interferentially colored glass substrate constituting the facade facing panel it is sometimes desirable for the interferentially colored glass substrate constituting the facade facing panel to be subjected to a bending treatment in order to impart a curvature to said substrate, it is therefore essential that the interferential coloring glass substrate for facade cladding panel can withstand such treatment without degradation of its properties.
• a problem posed by the concomitant use of windows and facade cladding panels on a structure or building is related to the visual harmony of the window-facade cladding assembly when the building or structure is seen from the outside. This problem is increased when the facade is fully glazed. Indeed, for aesthetic reasons, it is desired that the viewing areas, corresponding to the windows, and the opaque areas, corresponding to the locations of the facade facing panels, located between the viewing areas, have the same appearance, it is ie the same color for the same angle of observation between 0 ° and 60 °, preferably for the same angle of observation between 0 ° and 55 °.
• this particularly sensitive step may cause problems of porosity of the enamel coating that may lead to delamination thereof, or even a problem of reproducibility of the colors obtained during the final production of the glass substrate for facade or lightening facing panel,
• the enamel or paint used as opacifying coating has a significant contribution to the perceived color, this contribution is such that it considerably reduces the number of stack structure of functional coatings and protective coatings able to give the desired color,
• the invention particularly aims to overcome these disadvantages of the prior art.
• an objective of the invention in at least one embodiment, is to provide a glass substrate with interferential coloration for facing panel, having a good physicochemical and mechanical behavior. More specifically, it is a question of providing a facing panel compatible with a monolithic use and likely to be exposed in an external environment.
• An objective of the invention in at least one of its embodiments, is to provide a glass substrate with interferential coloration, said substrate being preferably monolithic, for facing panel which is particularly "hardenable".
• the invention in at least one of its embodiments, also has the objective of providing a glass substrate with interferential coloration, said substrate being preferably monolithic, for facade facing panel capable of visually matching with a glazing layer constituting the part corresponding to the windows in a facade for the same angle of observation between 0 ° and 60 °, more particularly for the same angle of observation between 0 ° and 55 ° C, said facing panel not requiring the use of enamel or paint. 4. Presentation of the invention
• the subject of the invention is an interferentially colored glass substrate for facing panel.
• such an interferentially colored glass substrate for a facing panel comprises, consists, essentially consists of a glass sheet, preferentially a single sheet of glass, covered on one of its faces by a stack of coatings such that said stack of coatings successively comprises from the glass sheet at least:
• a first transparent coating of dielectric material the optical thickness of the first transparent coating being at least greater than or equal to 5.0 nm, preferably at least greater than or equal to 10.0 nm, more preferably at least greater than or equal to 20 nm; , 0 nm, most preferably at least greater than or equal to 50.0 nm, more preferably at least greater than or equal to
• the optical thickness being in the range of values ranging from 5.0 nm, preferably from 10.0 nm, more preferably from 20.0 nm to 258.0 nm, preferably from 50.0 nm to 190.0 nm.
• nm more preferably from 70.0 nm to 180.0 nm, most preferably from 100.0 nm to 150.0 nm, preferably from 110.0 to 120.0 nm, ⁇ a semitransparent functional coating
• the geometric thickness of the semi-transparent functional coating being at least greater than or equal to 0.1 nm, preferably at least greater than or equal to 0.3 nm, more preferably at least greater than or equal to 0.5 nm and at the lower or equal to 50.0 nm, preferably not more than 25.0 nm, preferably the geometrical thickness is in the range of values from 0.1 nm, preferably 0.3 nm, to 50 nm.
• the optical thickness of the second transparent coating being at least 20.0 nm or greater, preferably at least greater than or equal to 30.0 nm, more preferably at least 100.0 nm or greater, most preferably at least 150.0 nm or more, more preferably 170.0 nm or less and at most or equal to 300.0 nm, preferably at most less than or equal to 250.0 nm, more preferably at most less than or equal to 210.0 nm, most preferably at most less than or equal to 200.0 nm, preferably the optical thickness is in the range of values from 20.0 nm, preferably from 30.0 nm, more preferably from 100.0 nm to 300.0 nm, more preferably férentiellement 150.0 nm to 250.0 nm, most preferably from 170.0 to 20
• a coating ensuring the opacity or quasi-opacity of said stack the geometrical thickness of said coating providing opacity or quasi-opacity being at least greater than or equal to 30.0 nm, preferably at least greater than or equal to 50, 0 nm, more preferably at least greater than or equal to 100.0 nm, the geometric thickness of the coating providing opacity or quasi opacity being at most less than or equal to 1000.0 nm, preferably at most 200 or less; 0 nm.
• the geometric thickness of said coating is in the range of values ranging from 30.0 nm to 1000.0 nm, preferably from 50.0 nm to 1000 nm, most preferably from 100.0 nm to 200.0 nm, said coating providing opacity or near opacity comprising at least one metal, a metalloid, a nitride or a carbide.
• the optical thickness of a coating is obtained by multiplying the geometric thickness of said coating by the refractive index of the material constituting said coating.
• the value of the refractive index considered is the value of said index at a wavelength of 550 nm.
• the general principle of the invention rests firstly on the substitution of the enamel or paint-based coating with an opaque or quasi-opaque coating having a geometric thickness at least greater than or equal to 30.0 nm and of on the other hand, forming an optical cavity formed from the glass sheet of at least a first transparent dielectric coating, a semi-transparent functional coating, a second transparent dielectric coating and a coating ensuring the opacity or quasi-opacity of said stack and to obtain a desired color.
• the substitution of the coating based on enamel or paint with a coating ensuring the opacity or quasi-opacity of the stack requires an adaptation of the optical cavity in terms of thickness of the various coatings constituting it.
• the coloration of the interferential substrate results from the optical cavity formed of at least a first transparent dielectric coating, a semitransparent functional coating, a second transparent dielectric coating and a coating ensuring opacity or near-darkness. opacity of said stack.
• the coloring is related to the thicknesses and compositions of the first transparent dielectric coating, the semi-transparent functional coating, the second transparent dielectric coating and the coating ensuring the opacity or quasi-opacity of the stack.
• the invention is based on a completely new and inventive approach.
• the inventors have in fact determined that, surprisingly, the substitution of the enamel or paint-based opacifying coating with an opaque or quasi-opaque coating having a geometrical thickness greater than or equal to 30.0 nm makes it possible to simplify the manufacture of the substrates. interferentially colored glass, said substrate being preferentially monolithic, for facing board avoiding the use of a painting or enamel application step and problems related to this step.
• the invention makes it possible to avoid:
• the geometric thickness of the coating providing opacity or quasi-opacity is advantageously greater than or equal to 100.0 nm, the inventors having determined that such a thickness makes it possible, in addition to guaranteeing the opacity or quasi-opacity of the panel. facing, to obtain better insensitivity vis-à-vis chemical and atmospheric agents (eg corrosion resistance).
• the geometric thickness of the coating ensuring opacity or quasi-opacity is advantageously included in the range of values ranging from 100.0 nm to 200.0 nm, such a thickness to obtain good insensitivity vis-à-vis the chemical and atmospheric agents while allowing to obtain deposition times of said coating which is the lowest possible.
• transparent coating is meant a coating that is transparent at the wavelengths of visible light.
• transparent is meant that the light transmission rate is at least 50% when the coating is applied to a sheet of clear silico-soda-lime float glass of 4 mm geometric thickness, measured with a source conforming to the CIE standard daylight illuminant D65 and at a solid angle of 2 ° according to EN410.
• semi-transparent functional coating is meant a semi-transparent functional coating at the wavelengths of visible light.
• semi-transparent it is meant that the light absorption rate is in the range of values from 10% to 70% when the coating is applied to a clear silico-soda-lime float glass sheet of 4 geometrical thickness mm, measured with a source conforming to the standard daylighting illuminant D65 by the CIE and at a solid angle of 2 °, according to the EN410 standard.
• the material constituting at least one layer of the first transparent dielectric coating comprises at least one oxide or nitride or an oxynitride.
• the oxide is selected from oxides of silicon, aluminum, titanium, zirconium, yttrium, hafnium, niobium, tin, tantalum, zinc and mixed oxides of at least two of them, preferentially among oxides of silicon, aluminum, titanium and mixed oxides of at least two of them, the preferred oxide being silicon oxide.
• silicon oxide provides a good protective barrier of the semitransparent functional coating during quenching and thus to obtain a staining-facing panel interferential having a better resistance to quenching.
• the nitride is chosen from silicon nitrides, aluminum nitrides and mixed nitrides of aluminum and silicon, the preferred nitride being silicon nitride.
• the advantage of using silicon nitride is that it provides a good protective barrier of the semi-transparent functional coating during quenching and thus to obtain an interferentially colored siding panel having better resistance to quenching
• the oxynitride is chosen from silicon oxynitride, aluminum oxynitride and mixed oxynitrides of silicon and aluminum, the preferred oxynitride being silicon oxynitride.
• the advantage of using silicon oxynitride is that it makes it possible to obtain a good protective barrier of the semi-transparent functional coating during quenching and thus to obtain an interference-colored siding panel. showing better resistance to quenching.
• the first transparent dielectric coating may also contain in a very small amount, generally less than 10 atomic percent, additional components. These include doping elements whose main role is to improve the manufacture and / or implementation of cathodes in the production of layers in vacuum deposition techniques. These elements are traditionally intended in particular to improve the conductivity of the materials constituting the cathodes. Such doping elements are for example titanium, aluminum.
• the material constituting at least one layer of the semi-transparent functional coating is a metal chosen from titanium, tungsten, niobium, chromium, nickel, copper, tantalum, zirconium, yttrium, palladium, iron, alloys or mixtures of at least two of these metals, stainless steels.
• the material constituting at least one layer of the semitransparent functional coating is a metal chosen from titanium, chromium, nickel, tantalum, tungsten, zirconium, yttrium, palladium, aluminum alloys and the like.
• At least two of these metals stainless steels, the advantage associated with the use of these metals, result from the fact that they allow, because of their physical properties such as thermal expansion, to obtain a cladding panel. coloring interferential having a better resistance to quenching.
• Stainless steels are preferred because, in addition to their chemical and thermal expansion properties, they have good resistance to corrosion.
• the material constituting at least one layer of the second transparent dielectric coating comprises at least one oxide or nitride or an oxynitride.
• the oxide is selected from oxides of silicon, aluminum, titanium, zirconium, yttrium, hafnium, niobium, tin, tantalum, zinc and mixed oxides of at least two of them, preferentially among the oxides of silicon, aluminum, titanium and mixed oxides of at least two of them.
• the nitride is chosen from silicon nitrides, aluminum nitrides and mixed nitrides of aluminum and silicon, the preferred nitride being silicon nitride.
• the advantage of using silicon nitride is that it provides a good protective barrier of the semi-transparent functional coating during quenching and thus to obtain an interferentially colored siding panel having better resistance to quenching
• the oxynitride is chosen from silicon oxynitride, aluminum oxynitride and mixed oxynitrides of silicon and aluminum, the preferred oxynitride being silicon oxynitride.
• the advantage of using silicon oxynitride is that it makes it possible to obtain a good protective barrier of the semi-transparent functional coating during quenching and thus to obtain an interference-colored siding panel. showing better resistance to quenching. Of all these materials cited above, silicon nitride is the preferred material.
• the second transparent dielectric coating can also contain in a very small amount, generally less than 10% atomic percentage, additional components.
• additional components include doping elements whose main role is to improve the manufacture and / or implementation of cathodes in the production of layers in vacuum deposition techniques. These elements are traditionally intended in particular to improve the conductivity of the materials constituting the cathodes. Such doping elements are for example titanium, aluminum.
• the coating ensuring the opacity or quasi-opacity of the stack is such that the facing panel comprising it has, on the opposite side to the face of the facing panel carrying said coating, a reflection coefficient greater than or equal to 9 % preferably greater than or equal to 15% and less than or equal to 98% or 95%, preferentially less than or equal to 90%, or 85% or 80% in the visible.
• the reflection coefficient is measured with a source conforming to the daylight illuminant normalized D65 by the CIE and at a solid angle of 2 °, according to the EN410 standard.
• the material constituting at least one layer of the coating ensuring the opacity or quasi-opacity of the stack is chosen from a metal, a metalloid, a carbide or a nitride.
• the material constituting at least one layer of the coating ensuring opacity or quasi-opacity is a metal.
• the metal is chosen from titanium, tungsten, niobium, chromium, nickel, copper, tantalum, zirconium, yttrium, palladium, iron, alloys or mixtures of at least two of these metals, stainless steels, stainless steels being preferred, the advantage associated with the use of these metals is that they allow, because of their physical properties such as thermal expansion, to obtain a cladding panel with interferential coloration having better quenching performance. Stainless steels are preferred because, in addition to their thermal expansion properties, they have good resistance to corrosion.
• the geometric thickness of the coating ensuring opacity or quasi-opacity of the stack is at least greater than or equal to 30.0 nm, preferably at least greater than or equal to 50.0 nm, more preferably at least greater than or equal to at 100.0 nm.
• the geometric thickness of the coating ensuring opacity or near-opacity being at most less than or equal to 1000.0 nm, preferably at most 200.0 nm or less.
• the geometric thickness of said coating is in the range of values ranging from 30.0 nm to 1000.0 nm, preferably from 50.0 nm to 1000 nm, most preferably from 100.0 nm to 200.0 nm.
• the interferentially colored glass substrate according to the invention is intended to be used as reflective decorative panel, or even partially reflective, for interior or exterior applications
• glass sheet is meant an inorganic glass sheet.
• a glass sheet of thickness at least greater than or equal to 0.5 mm and not less than or equal to 20.0 mm, preferably at least greater than or equal to 4.0 mm and at most less than or equal to 10.0 mm, comprising silicon as one of the indispensable components of the vitreous material.
• Silico-soda-lime glasses which are clear, extra-clear or colored in the mass or on the surface are preferred. More preferentially, the clear or extra-clear silico-soda-lime glasses are preferred because of their low absorption.
• the interferentially colored glass substrate for facing panel according to the invention is such that the glass sheet is covered on one of its faces by the stack of coatings, said covered face being the face intended to be oriented on the building side, commonly called inside or face 2.
• the term "opaque” means that the light transmission rate is at most 4.0%, preferentially at most 2.0%, more preferably at most 1.0%, most preferably at most 0.1%, when it is applied to a silico-soda-lime float glass of 4.0 mm thick, measured with a source in accordance with the illuminant Standard daylight D65 by CIE and at a solid angle of 2 °, according to EN410.
• the interferentially colored glass substrate according to the invention is such that it comprises, consists, consists essentially of a glass sheet, preferably a single sheet of glass, covered on one of its faces by a stack coating such that said stack of coatings comprises successively from the glass sheet at least: ⁇ a first transparent coating of dielectric material, the optical thickness of the first transparent coating being at least greater than or equal to 5.0 nm, preferably at least greater than or equal to 10.0 nm, more preferably at least greater than or equal to 20.0 nm, most preferably at least greater than or equal to
• 190.0 nm more preferably at most less than or equal to 180.0 nm, most preferably at most 150.0 nm or less, more preferably at most 120.0 nm, preferably optical thickness being in the range of values ranging from 5.0 nm, preferably from 10.0 nm, more preferably from 20.0 nm to 258.0 nm, preferably from 50.0 nm to 190.0 nm, more preferably from 70.0 nm to 180.0 nm, most preferably from 100.0 nm to 150.0 nm, more preferably from 110.0 to 120.0 nm,
• a semi-transparent metallic functional coating the attenuation thickness of the color of the metal coating being at least 0.3 nm or more, preferably at least greater than or equal to 0.9 nm, more preferably at least greater than or equal to 1.5 nm, most preferably at least greater than or equal to 3.0 nm, more preferably at least greater than or equal to 6, 5 nm, more preferably at least greater than or equal to 9.5 nm and at most less than or equal to 30.0 nm, preferably at most 28.0 nm or less, more preferably at most 25 or less; , 2 nm, most preferably at most 18.0 nm or less, preferably at most less than or equal to
• the attenuation thickness is in the range of values ranging from 0.3 nm, preferably from 0.9 nm, more preferably from 1.5 nm, most preferably from 3.0 nm to 30.0 nm. , preferably from 0.3 nm to 28.0 nm, more preferably from 0.3 nm to 25.2 nm, most preferably from 6.5 nm to 18.0 nm, more preferably from 9.5 nm to 15 nm.
• the attenuation thickness of the color being equal to the product of the geometric thickness of the metallic functional coating by the complex part, k, of the refractive index at 550 nm of the metal constituting said coating, when the metal is stainless steel, the thickness of attenuation of the color of the metal coating corresponds to a geometric thickness is at least greater than or equal to 0.1 nm, preferably at least greater than or equal to 0.3 nm, plus preferably at least greater than or equal to 0.5 nm, the most preferred ntiellement at least greater than or equal to 2.0 nm, preferably at least greater than equal to 3.0 nm and at most less than or equal to 10.0 nm, preferably at most less than or equal to 8.4 nm, the more preferably at most less than or equal to 5.0 nm, more preferably at most less than or equal to 4.0 nm.
• the geometric thickness of the stainless steel coating is in the range of values from 0.1 nm, preferentially 0.3 nm, more preferably 0.5 nm to 10.0 nm, more preferably 0.1 nm to 8.4 nm, most preferably 2.0 nm to 5.0 nm.
• nm advantageously from 3.0 nm to 4.0 nm, a second transparent coating of dielectric material, the optical thickness of the second transparent coating being at least 20.0 nm or greater, preferably at least 30 nm or more; , 0 nm, more preferably at least greater than or equal to 100.0 nm, most preferably at least greater than or equal to 150.0 nm, more preferably at least greater than or equal to 170.0 nm and at most less than or equal to at 300.0 nm, preferably at most less than or equal to 250.0 nm, most preferably at most less than or equal to 210.0 nm, more preferably at most 200.0 nm or less.
• the optical thickness is in the range of values ranging from 20.0 nm, preferably from 30.0 nm, more preferably from 100.0 nm to 300.0 nm, preferentially from 150.0 nm to 250.0 nm. nm, more preferably from 170.0 to 200.0 nm.
• a coating ensuring the opacity or quasi-opacity of said stack the geometric thickness of said coating providing opacity or quasi-opacity being at least 30.0 nm or greater, preferably at least 50 or greater, 0 nm, more preferably at least greater than or equal to 100.0 nm, most preferably at least greater than or equal to 150.0 nm, the geometric thickness of the coating providing opacity or quasi-opacity being at most less than or equal to equal to 1000.0 nm, preferably not more than 200.0 nm.
• the geometric thickness of said coating is in the range of values ranging from 30.0 nm to 1000.0 nm, preferably from 50.0 nm to 1000.0 nm, most preferably 100.0 nm to 200.0 nm, said coating ensuring opacity or quasi-opacity comprising at least one metal, a metalloid, a nitride or a carbide.
• the interferentially colored glass substrate according to the invention is such that the first and second transparent coating of dielectric material are based on silicon nitride, the first and second transparent coating based on nitride optionally containing an oxygen content expressed as an atomic percentage less than or equal to 10%, preferably less than or equal to 5%, more preferably less than or equal to 2%, most preferably equal to 0%.
• the interferentially colored glass substrate, said substrate being preferably monolithic, for facing panel according to the invention is such that the semi-transparent functional coating and the coating ensuring the opacity or the quasi-opacity are metallic coatings.
• the interferentially colored glass substrate, said substrate being preferably monolithic, for facing panel is such that it consists of a clear silico-soda-lime glass.
• Such glasses have a main composition which is in the following ranges, expressed in% of the weight of glass:
• the glass of the interferentially colored glass substrate is a float glass obtained in a method of floating the molten glass on a flat surface of liquid tin, commonly known as a "float" process. ".
• the interferentially colored glass substrate said substrate being preferably monolithic, for a facing panel according to the invention is such that it comprises, above the coating ensuring the opacity or the quasi-opacity of the stack, a protective coating, the geometric thickness of the protective coating being at least greater than or equal to 5.0 nm, preferably at least greater than or equal to 20.0 nm, the geometric thickness of the protective coating being not more than 500.0 nm.
• the geometric thickness of the protective coating is in the range of values ranging from 5.0 nm to 500.0 nm, more preferably from 20.0 nm to 500.0 nm.
• the protective coating makes it possible to protect the stack of coatings deposited on the glass sheet from physical (for example claws) or chemical (for example oxidation (corrosion) and contamination by chemical and atmospheric agents). More particularly, the interferentially colored glass substrate for facing panel, said substrate being preferentially monolithic, comprising a protective coating has a better resistance with respect to the various quenching processes.
• the material constituting at least one layer of the protective coating is chosen from:
• An oxynitride chosen from silicon oxynitride, aluminum oxynitride, mixed oxynitride of aluminum and silicon, preferentially silicon oxynitride, oxynitride or mixed oxynitride being optionally doped with aluminum, boron , yttrium,
• the interferentially colored glass substrate said substrate being preferably monolithic, for a facing panel according to the invention is such that the material constituting at least one layer of the protective coating is a selected chemical compound. among carbon, chromium, nickel, aluminum, stainless steel or an alloy of metals such as nickel-chromium (NiCr) or NiCrAlY, these compounds making it possible to obtain a better resistance to oxidation of the interferentially colored glass substrate according to the invention with respect to their corresponding oxides, oxynitrides or nitrides.
• the preferred material constituting at least one layer of the protective coating is stainless steel.
• the interferentially colored glass substrate, said substrate being preferentially monolithic, for facing panel according to the invention is such that the protective coating comprises at least one metal adhesion layer, said metal adhesion layer being the layer of the protective coating closest to the coating ensuring the opacity or quasi-opacity of the stack.
• this metal adhesion layer has a geometric thickness at least greater than or equal to 10.0 nm, preferably at least greater than or equal to 15.0 nm, the geometric thickness of the metal adhesion layer being at least or equal to 100.0 nm, preferably at most less than or equal to 50.0 nm.
• the geometric thickness of the adhesion layer is between 10.0 nm and 100.0 nm, preferably between 15.0 nm and 50.0 nm.
• the material constituting the adhesion layer is based on chromium
• the protective coating may advantageously comprise a terminal layer, in other words the layer the protective coating furthest from the glass sheet constituting the glass substrate, carbon.
• This layer is that it makes it possible to obtain temporary mechanical and physicochemical protection, up to the quenching process, this layer being destroyed by oxidation during quenching.
• the interferentially colored glass substrate said substrate being preferably monolithic, for facing panel according to the invention is such that it comprises between the glass sheet and the first transparent coating of dielectric material, a coating transparent improving adhesion, said coating being of dielectric material.
• the material constituting the adhesion-improving coating has a refractive index close to the refractive index of the glass sheet.
• the refractive index close to the refractive index of the glass sheet it is meant that the absolute value of the difference between the refractive index of the material constituting the coating improving the adhesion and the refractive index of the glass sheet has a value less than 0.13, said indices being the refractive indices of the different materials at a wavelength equal to 550 nm.
• the refractive index of the material constituting the adhesion-improving coating has a value in the range of values between 1.4 and 1.65.
• the material constituting the adhesion-improving coating is preferably selected from silicon oxide or silicon oxynitride.
• the thickness of the coating improving the adhesion is at least greater than 0.0 nm, preferably at least greater than or equal to 10.0 nm, more preferably at least greater than or equal to 15.0 nm.
• the thickness of the coating improving the adhesion is at most less than or equal to 50.0 nm, preferably at most 30.0 nm or less.
• the adhesion-improving coating has a geometric thickness in the range of values ranging from 0.0 nm to 50.0 nm, preferably from 10.0 nm to 50.0 nm, more preferably from 15.0 nm to 30.0 nm.
• the interferentially colored glass substrate 1a said substrate being preferably monolithic, for facing panel according to the invention is such that at least one layer of the semi-transparent functional coating and at least one layer of coating ensuring the opacity or quasi-opacity of the stack are of the same chemical nature.
• the interferentially colored glass substrate said substrate being preferably monolithic, for facing panel according to the invention is such that it comprises, consists, essentially consists of, successively from the glass sheet, at least : a coating improving the adhesion of silicon oxynitride, the geometric thickness of the coating improving the adhesion being at least greater than 0.0 nm, preferably at least greater than or equal to 10.0 nm, more preferably at least greater than or equal to at 15.0 nm, the geometric thickness of the coating improving the adhesion being at most less than or equal to 50.0 nm, preferably at most less than or equal to 30.0 nm.
• the thickness of the coating improving the adhesion is at least greater than 0.0 nm and at most 50.0 nm or less, preferably at least greater than or equal to 10.0 and at most 50 or less. , 0 nm, more preferably at least greater than or equal to 15.0 and at most less than or equal to 30.0 nm, a first transparent coating made of silicon nitride dielectric material, the geometric thickness of the transparent coating being at least greater or equal to 10.0 nm, preferably at least 25.0 nm or more, more preferably at least 35.0 nm or more, most preferably at least 50.0 nm or more, preferably at least greater than or equal to 55.0 nm, the geometric thickness of the transparent coating being at most less than or equal to 129.0 nm, preferably at most less than or equal to 95.0 nm, preferably at least 90.0 nm or more, most preferably at most 75.0 nm, preferably at most 60.0 nm or less.
• the thickness of said coating is between 10.0 nm and 129.0 nm, preferably between 25.0 nm and 95.0 nm, preferably between 35.0 nm and 90.0 nm, most preferably between 50, 0 nm and 75.0 nm, advantageously between 55.0 nm and 60.0 nm.
• the attenuation thickness of the coating color being at least 0.3 nm or more, preferably at least 0.9 nm, more preferably at least 1.5 nm, most preferably at least 3.0 nm, preferably at least greater than or equal to 6.5 nm, more preferably at least greater than or equal to 9.5 nm, the attenuation thickness being at most 30.0 nm or less, preferably at most less than or equal to 28.0 nm, more preferably at most 25.2 nm or less, most preferably at most 18.0 nm or less, more preferably at most 15.0 nm or less.
• the attenuation thickness is in the range of values of 0.3 nm, preferably 0.9 nm, more preferably 1.5 nm, most preferably
• the attenuation thickness of the color being equal to the product of the geometrical thickness of the metallic functional coating by the complex part, k, of the refractive index at 550 nm of the metal constituting said coating, when the metal is stainless steel, the attenuation thickness of the color of the metal coating corresponds to a geometrical thickness at least greater than or equal to 0.1 nm, preferably at least greater than or equal to at 0.3 nm, more preferably at least greater than or equal to 0.5 nm, most preferably at least greater than or equal to 2.0 nm, advantageously at least greater than or equal to 2.0 nm, the thickness geometric value being at most 10.0 nm or less, preferentially at most less than or equal to 8.4
• the geometric thickness of the coating metallic functional stainless steel is in the range of value ranging from 0.1 nm, preferably 0.3 nm, more preferably from 0.5 nm to 10.0 nm, more preferably from 0.1 nm to 8.4 nm, most preferably from 2.0 nm to 5.0 nm, advantageously from 3.0 nm to 4.0 nm, a second transparent coating made of silicon nitride dielectric material, the geometric thickness of the second transparent coating being at least less than or equal to 10.0 nm, preferably at least 50.0 nm or more, more preferably at least 75.0 nm, most preferably at least 85.0 nm, geometric thickness of the second transparent coating being at most less than or equal to 150.0 nm, preferably at most less than or equal to 125.0 nm, most preferably at most less than or equal to 100.0 nm.
• the geometric thickness of the second transparent coating being at most less than or equal to 150.0 nm, preferably less than or equal to 105.0 nm.
• the transparent coating being in the range of values from 10.0 nm to 150.0 nm, preferably from 50.0 nm to 150.0 nm, more preferably from 75.0 nm to 125.0 nm, most preferably from 85.0 nm to 100.0 nm.
• a metal coating ensuring the opacity or quasi-opacity of the stack comprising at least one layer, preferably the first layer, of stainless steel, the geometric thickness of the metallic coating ensuring opacity or near-opacity being at least greater than or equal to 30.0 nm, preferably at least greater than or equal to 50.0 nm, more preferably at least greater than or equal to 100.0 nm, the geometrical thickness of the metallic coating ensuring opacity or quasi-opacity being at most less than or equal to 1000.0 nm, preferably at less than or equal to 200.0 nm.
• the geometric thickness of said coating is in the range of values ranging from 30.0 nm to 1000.0 nm, more preferably from 50.0 nm to 1000.0 nm, most preferably from 100.0 nm to 200, 0 nm.
• the interferentially colored glass substrate said substrate being preferably monolithic, for facing panel is such that it comprises a protective coating comprising at least one layer of stainless steel.
• the interferentially colored glass substrate said substrate being preferably monolithic, for facing panel according to the invention is such that it comprises at least: a first transparent coating made of dielectric material based on nitride silicon, the geometric thickness of the first transparent coating being between 10.0 nm and 120.0 nm,
• a metallic titanium functional coating the geometric thickness of the first metallic functional coating being in the range of values from 1.0 nm to 10.0 nm, preferably in the range of values from 1.0 nm to 5 nm; , 0 nm,
• a metal coating ensuring the opacity or quasi-opacity of the stack comprising at least a first titanium layer, the geometrical thickness of the metal coating ensuring opacity or quasi-opacity being at least less than or equal to 30.0 nm, preferably at least greater than or equal to 50.0 nm, more preferably at least greater than or equal to 100.0 nm, the geometrical thickness of the metallic coating ensuring the opacity or practically opacity being at most less than or equal to 1000.0 nm, preferably at most less than or equal to 200.0 nm.
• the geometric thickness of said coating is in the range of values ranging from 30.0 nm to 1000.0 nm, preferably from 50.0 nm to 1000.0 nm, most preferably from 100.0 nm to 200.0 nm. nm.
• the coloring glass substrate i n te ref 11 e is such that it comprises at least:
• a metal coating ensuring the opacity or quasi-opacity of the stack comprising at least a first titanium layer, the geometrical thickness of the metal coating ensuring opacity or quasi-opacity being at least less than or equal to 30.0 nm, preferably at least greater than or equal to 50.0 nm, more preferably at least greater than or equal to 100.0 nm, the geometrical thickness of the metallic coating ensuring the opacity or practically opacity being at most less than or equal to 1000.0 nm, preferably at most less than or equal to 200.0 nm.
• the geometric thickness of said coating is in the range of values ranging from 30.0 nm to 1000.0 nm, preferably from 50.0 nm to 1000.0 nm, most preferably from 100.0 nm to 200.0 nm. nm.
• a protective overlay is deposited above the metallic coating ensuring opacity or quasi-opacity, the material constituting said overcoating being based on a compound selected from carbon , silicon oxynitride, silicon nitride, silicon carbide, stainless steel, stainless steel being preferred, said overlayer having a geometric thickness at least greater than or equal to 5.0 nm and at most equal to 50.0 nm.
• the interferentially colored glass substrate, said substrate being preferably monolithic, for facing panel advantageously comprises a transparent coating improving adhesion, said coating being made of dielectric material selected from silicon oxide or silicon oxynitride.
• the thickness of the coating improving the adhesion is at least greater than 0.0 nm, preferably at least greater than or equal to 10.0 nm, more preferably greater than or equal to 15.0 nm.
• the thickness of the adhesion improving coating is at most 50.0 nm or less, preferably less than or equal to 30.0 nm.
• the adhesion-improving coating has a geometric thickness in the range of values ranging from 0.0 nm to 50.0 nm, preferably from 10.0 nm to 50.0 nm, more preferably from 15.0 nm to 30.0 nm.
• the interferential colored glass substrate for facing panel according to the invention is such that it comprises at least:
• a coating improving the silicon oxynitride adhesion the geometric thickness of the adhesion improving coating being at least greater than 0.0 nm and at most 50.0 nm or less ⁇
• a first transparent coating of dielectric material in silicon nitride the geometric thickness of the first transparent coating being between 10.0 nm and 120.0 nm
• a metallic titanium functional coating the geometric thickness of the first metallic functional coating being in the range of values from 1.0 nm to 10.0 nm, preferably in the range of values from 1.0 nm to 5 nm; , 0 nm
• a metal coating ensuring the opacity or quasi-opacity of the stack comprising at least a first titanium layer, the geometric thickness of the metal coating at least greater than or equal to 30.0 nm, preferably at least greater than or equal to at 50.0 nm, more preferably at least greater than or equal to 100.0 nm, the geometrical thickness of the metal coating ensuring opacity or quasi-opacity being at most less than or equal to 1000.0 nm, preferably at most less than or equal to 200.0 nm.
• the geometric thickness of said coating is in the range of values ranging from 30.0 nm to 1000.0 nm, preferably from 50.0 nm to 1000.0 nm, most preferably from 100.0 nm to 200.0 nm. nm.
• the interference-colored glass substrate for a facing panel according to the invention is such that it successively comprises, starting from the glass sheet, at least:
• a coating improving the silicon oxynitride adhesion the geometric thickness of the coating improving the adhesion being at least greater than 0.0 nm and at most 50.0 nm,
• a semitransparent metal metallic functional coating the geometric thickness of said coating being in the range of values from 0.1 nm to 10.0 nm, a second transparent coating made of silicon nitride dielectric material, the geometric thickness of the second transparent coating being at least greater than or equal to 10.0 nm and not more than 150.0 nm,
• a metal coating ensuring the opacity or quasi-opacity of the stack comprising at least one layer, preferably the first layer, made of stainless steel, the geometric thickness of the metal coating being greater than or equal to 30.0 nm, preferentially at least greater than or equal to 50.0 nm, more preferably at least greater than or equal to 100.0 nm, the geometrical thickness of the metallic coating ensuring opacity or quasi-opacity being at most less than or equal to equal to 1000.0 nm, preferably at most less than or equal to 200.0 nm.
• the geometric thickness of said coating is in the range of values ranging from 30.0 nm to 1000.0 nm, preferably from 50.0 nm to 1000.0 nm, most preferably from 100.0 nm to 200.0 nm. nm.
• the vitreous-colored glass substrate 11, said substrate being preferably monolithic, for facing panel according to the invention is such that it comprises at least: ⁇ a first transparent coating of dielectric material, the geometric thickness of the first transparent layer being between 10.0 nm and 120.0 nm, said first coating comprising at least two layers of different chemical nature, the first layer from the glass substrate comprising an oxide silicon also called
• Adhesion improving coating and a second layer comprising a silicon oxynitride or "first transparent coating of dielectric material sensu stricto", • a functional metallic titanium coating, the geometric thickness of the first metallic functional coating being included in the range values ranging from 1.0 nm to 10.0 nm, preferably in the range of values from 1.0 nm to 5.0 nm, ⁇ a second transparent coating made of silicon oxynitride dielectric material, the geometric thickness of the second transparent coating being in the range of 20.0 nm to 120.0 nm,
• a metal coating ensuring the opacity or quasi-opacity of the stack comprising at least a first titanium layer, the geometrical thickness of the metal coating ensuring opacity or quasi-opacity being at least less than or equal to 30.0 nm, preferably at least greater than or equal to 50.0 nm, more preferably at least greater than or equal to 100.0 nm, the geometrical thickness of the metallic coating ensuring the opacity or practically opacity being at most less than or equal to 1000.0 nm, preferably at most less than or equal to 200.0 nm.
• the geometric thickness of said coating is in the range of values ranging from 30.0 nm to 1000.0 nm, preferably from 50.0 nm to 1000.0 nm, most preferably from 100.0 nm to 200.0 nm. nm.
• a protective overlay is deposited above the metallic coating providing opacity or quasi-opacity, the material constituting said overcoat being based on a compound selected from carbon, silicon oxynitride, silicon nitride, silicon carbide, stainless steel, stainless steel being preferred, said overlayer having a geometric thickness at least greater than or equal to 5.0 nm and at most less than or equal to at 50.0 nm.
• the interferentially colored glass substrate, said substrate being preferably monolithic, for facing panel according to the invention is such that said glass substrate is quenchable.
• the term “toughening glass substrate” is intended to mean that the stack of coatings of the interferentially colored glass substrate for facing panel according to the invention has good quench resistance, in other words that said substrate does not suffer from mechanical alterations (peeling, cracking) during quenching.
• the interferentially colored glass substrate according to the invention does not undergo significant modifications of its colorimetric coordinates before and after quenching.
• significant changes in its colorimetric coordinates we mean a glass substrate with interferential coloration whose colorimetric coordinates (L *, a *, b *) are little affected by the quenching process.
• colorimetric coordinates (L *, a *, b *) are little affected it is meant that the value ⁇ * ( ⁇ is less than 6.0, preferentially less than 4.0, more preferably less than
• L * tv , a represents the L * v , a colorimetric coordinates of the interferential coloring glass substrate for quench facing panel, a * atv, a represents the colorimetric coordinates a * v , "of the interferential coloring glass substrate for panel cladding before quenching, a * tv , a represents the colorimetric coordinates a * v , "of the interference-colored glass substrate for cladding board after quenching, b * atv, a represents the colorimetric coordinates b * v ,” of the staining glass substrate interferential for tempered facing panel, b * tv , a represents the colorimetric coordinates b * v , "of the interferentially colored glass substrate for facing panel after quenching.
• the index ⁇ , ⁇ indicates that the measurement was made on the glass side, in other words on the uncoated side at the same angle a.
• the interferentially colored glass substrate according to the invention is such that the Changes in colorimetric coordinates after quenching are not very dependent on the quenching process.
• significant modifications of these colorimetric coordinates is meant a glass substrate with interferential coloration whose colorimetric coordinates (L * tv , a , a * tv , a, b * tv , a) are slightly affected by the process thermal quenching.
• colorimetric coordinates (L * tv , a, a * tv , a, b * tv , a) are little affected"
• ⁇ * 1 ⁇ , ⁇ is less than or equal to 4.0, preferably less than or equal to 2.0, more preferably less than or equal to 1.0, most preferably equal to 0.0, with AE * t; V , at any angle of observation a between 0 and 60 °.
• L * t , v, a , tpsi, t ° i and L * t , v, ", t P s2, t ° 2 respectively represent the colorimetric coordinates L * v , a of the interferential coloration glass substrate for facing panel after quenching at a temperature t ° 1 and a time tps 1 and at a temperature t ° 2 and a time tps 2 a * t, v, a, tpsi, t ° i and a * t , v, a, tps2, t ° 2 respectively represent the colorimetric coordinates a * t , v , a of the interference-colored glass substrate for facing panel after quenching at a temperature t ° 1 and a time tps 1 and at a temperature t ° 2 and a time tps 2 b * t, v, a, tpsi
• the interference-colored glass substrate for facing panel according to the invention is such that said interferentially colored glass substrate constitutes the opaque zone of a fully glazed facade and has the same color characteristics after quenching as those of the layered glazing, such as, for example, a glazing coated with a low-emissivity coating, constituting the zone of vision with which said interferential coloring glass substrate for a cladding board is to be associated, said interferential-stained glass and glazing substrate with layers are such that their respective coatings are deposited on a glass sheet of identical chemical composition.
• Aa * av , a ⁇ , ⁇ represents the difference between the colorimetric coordinates a * av , a of an opaque zone consisting of the interferential coloring glass substrate for facing panel after quenching and a * fv , a of a vision zone corresponding to a layered glazing,
• Ab * fav , a represents the difference between the colorimetric coordinates b * av , a of an opaque zone consisting of the interferential coloring glass substrate for facing panel after quenching and b * fv , a of a zone of vision corresponding to a layered glazing.
• the index ⁇ , ⁇ indicates that the measurement was made on the glass side, in other words on the uncoated side at an angle ⁇ .
• the L *, a * and b * values correspond to the colorimetric coordinates according to the CIE Lab model of color representation developed by the International Commission on Illumination (CIE) (CIE 15: 2004). These coordinates are determined by a source conforming to the daylight illuminant normalized D65 by the CIE at an angle a.
• the interferentially colored glass substrate said substrate being preferably monolithic, for facing panel according to the invention is such that it comprises, consists, essentially consists of, successively from the glass sheet, at least :
• the interferential coloring glass substrate for facing panel according to the invention is such that it comprises between the glass sheet and the first transparent coating of dielectric material, at least one coating improving the adhesion in a material having a refractive index at 550 nm between 1.40 and 1.65 such as silicon oxynitride, the geometric thickness of the coating improving the adhesion being at least greater than 0.0 nm and not more than 30.0 nm.
• a coating makes it possible to increase the stability of the stack
• the interferentially colored glass substrate for facing panel according to the invention is such that it comprises above the metal coating providing opacity or quasi-opacity an overlayer, the material constituting said overcoat being based on a compound selected from carbon, silicon oxynitride, silicon nitride, silicon carbide, said overcoat having a Geometric thickness at least greater than or equal to 5.0 nm and not more than 50.0 nm.
• the substrate according to any one of the three preceding embodiments is a quenchable substrate that can be used as a spandrel and has the same color characteristics as the Stopray Vision-50, Stopray Vision-50T, Stopray Vision-60T , Stopray Safir, Planibel Energy N, Planibel Energy NT, Stopray Galaxy, UltraVision-50 (UV50) marketed by AGC constituting the viewing areas, corresponding to the windows of a fully glazed facade.
• the interferentially colored substrate is such that it comprises, consists, essentially consists of, successively from the glass sheet:
• a coating improving the silicon oxynitride adhesion the geometric thickness of the coating improving the adhesion being at least greater than 0.0 nm and at most 30.0 nm or less, preferably of the order of 15 ⁇ m; , 0 nm,
• a first transparent coating made of silicon nitride dielectric material said coating having an optical thickness in the range of values ranging from 114.4 nm to 122.4 nm, preferably of the order of 118.4 nm, semi-transparent functional coating made of stainless steel, the geometric thickness of said coating being in the range of values ranging from 3.0 nm to 3.8 nm, preferably being of the order of 3.4 nm,
• a metal coating ensuring the opacity or quasi-opacity of said stack the geometric thickness of said coating ensuring opacity or quasi-opacity being at least 100.0 nm, preferably in the range of values from 100.0 nm to 200.0 nm, more preferably of the order of 200.0 nm, said coating providing opacity or quasi-opacity being made of stainless steel.
• Said substrate being a quenchable substrate capable of being used as a spandrel and having the same color characteristics as the Stopray Vision-50T type layer glazings.
• the interferentially colored substrate is such that it comprises, consists, essentially consists of, successively from the glass sheet:
• a coating improving the silicon oxynitride adhesion the geometric thickness of the coating improving the adhesion being at least greater than 0.0 nm and at most 30.0 nm or less, preferably of the order of 15 ⁇ m; , 0 nm,
• a first transparent coating made of silicon nitride dielectric material said coating having an optical thickness in the range of values ranging from 109.4 nm to 116.6 nm, preferably of the order of 114.2 nm,
• a semi-transparent functional stainless steel coating the geometric thickness of said coating being in the range of values ranging from 3.4 nm to 4.2 nm, preferably being of the order of 3.8 nm
• a second transparent coating made of silicon nitride dielectric material said coating having an optical thickness in the range of values ranging from 172.2 nm to 190.4 nm, preferably of the order of 181.4 nm
• metal coating ensuring the opacity or quasi-opacity of said stack, the geometric thickness of said coating providing opacity or quasi-opacity being at least greater than or equal to 100.0 nm, preferably within the range of values from 100.0 nm to 200.0 nm, more preferably of the order of 200.0 nm, said coating providing opacity or quasi-opacity being made of stainless steel.
• Said substrate being a quenchable substrate capable of being used as a spandrel and having the same color characteristics as the Stopray Vision-60T type layer glazings.
• the interferentially colored substrate is such that it comprises, consists, essentially consists of, successively from the glass sheet:
• a coating improving the silicon oxynitride adhesion the geometric thickness of the coating improving the adhesion being at least greater than 0.0 nm and at most 30.0 nm or less, preferably of the order of 15 ⁇ m; nm,
• a first transparent coating made of silicon nitride dielectric material said coating having an optical thickness in the range of values ranging from 113.6 nm to 124.0 nm, preferably of the order of 118.8 nm
• a semi-transparent functional stainless steel coating the geometric thickness of said coating being in the range of values from 3.2 nm to 4.0 nm, preferably being of the order of 3.6 nm
• a second transparent coating of silicon nitride dielectric material said coating having an optical thickness in the range of values from 166.2 nm to 180, 2 nm, preferably of the order of 173.2 nm,
• a metal coating ensuring the opacity or quasi-opacity of said stack the geometric thickness of said coating providing opacity or quasi-opacity being at least 100.0 nm or greater, preferably in the range of value; ranging from 100.0 nm to 200.0 nm, more preferably of the order of 200.0 nm, said coating providing opacity or quasi-opacity being made of stainless steel.
• Said substrate being a quenchable substrate capable of being used as a spandrel and having the same color characteristics as Planibel Energy NT type glazing units.
• the interferentially colored substrate is such that it comprises, consists, essentially consists of, successively from the glass sheet:
• a coating improving the silicon oxynitride adhesion the geometric thickness of the coating improving the adhesion being at least greater than 0.0 nm and at most 30.0 nm or less, preferably of the order of 15 ⁇ m; nm,
• a first transparent coating made of silicon nitride dielectric material said coating having an optical thickness in the range of values ranging from 107.3 nm to 117.8 nm, preferably of the order of 112.8 nm, semi-transparent functional coating made of stainless steel, the geometric thickness of said coating being in the range of values ranging from 2.9 nm to 3.7 nm, preferably being of the order of 3.3 nm,
• a second transparent coating made of silicon nitride dielectric material said coating having an optical thickness in the range of values ranging from 171.6 nm to 197.6 nm, preferably of the order of 184.6 nm,
• a metal coating ensuring the opacity or quasi-opacity of said stack the geometric thickness of said coating providing opacity or quasi-opacity being at least 100.0 nm or greater, preferably in the range of value; ranging from 100.0 nm to 200.0 nm, more preferably of the order of 200.0 nm, said coating providing opacity or quasi-opacity being made of stainless steel.
• the interferentially colored substrate being a quenchable substrate that can be used as a spandrel and having the same color characteristics as the Stopray Galaxy type layer glazings.
• the interferentially colored substrate is such that it comprises, consists, essentially consists of, successively from the glass sheet: a coating improving the silicon oxynitride adhesion, the geometric thickness of the coating improving the adhesion being at least greater than 0.0 nm and at most less than or equal to 30.0 nm, preferably of the order of 15.0 nm,
• a first transparent coating made of silicon nitride dielectric material said coating having an optical thickness in the range of values ranging from 42.8 nm to 48.3 nm, preferably of the order of 45.6 nm,
• a semi-transparent functional stainless steel coating the geometric thickness of said coating being in the range of values ranging from 4.2 nm to 5.6 nm, preferably being of the order of 5.0 nm,
• a second transparent coating made of silicon nitride dielectric material said coating having an optical thickness in the range of values ranging from 92.0 nm to 296 ⁇ m, preferably of the order of 94.3 nm,
• a metal coating ensuring the opacity or quasi-opacity of said stack the geometric thickness of said coating ensuring opacity or quasi-opacity being at least 100.0 nm or greater, preferably, geometric thickness of said coating; is in the range of from 100.0 nm to 200.0 nm, more preferably of the order of 200.0 nm, said coating ensuring opacity or quasi-opacity being stainless steel.
• Said substrate being a quenchable substrate capable of being used as a spandrel and having the same color characteristics as Stopray UltraVision-50 layered glazing units.
• the glass-colored substrate 11 is inert, said substrate being preferably monolithic, for facing panel according to the invention is such that it comprises, consists, consists essentially of, successively from the glass sheet, at least:
• the interferential coloring glass substrate for facing panel according to the invention is such that it comprises between the glass sheet and the first transparent coating of dielectric material, at least one coating improving the adhesion in a material having a refractive index at 550 nm between 1.40 and 1.65 such as silicon oxynitride, the geometric thickness of the coating improving the adhesion being at least greater than 0.0 nm and not more than 30.0 nm.
• a coating makes it possible to increase the stability of the stack
• the interferentially colored glass substrate for facing panel according to the invention is such that it comprises above the metal coating providing opacity or quasi-opacity an overlayer, the material constituting said overcoat being based on a compound selected from carbon, silicon oxynitride, silicon nitride, silicon carbide, said overlayer having a geometric thickness at least greater than or equal to 5.0 nm and not more than 50.0 nm
• the substrate according to any one of the three preceding embodiments is a quenchable substrate capable of being used as a spandrel and having the same color characteristics as the Stopray Vision-36T type layer glazings marketed by AGC constituting the zones of vision. , corresponding to the windows of a fully glazed facade.
• the interferentially colored substrate, said substrate being preferentially monolithic, for facing panel according to the invention is such that it comprises, consists, essentially consists of, successively from the glass sheet:
• a coating improving the silicon oxynitride adhesion the geometric thickness of the coating improving the adhesion being at least greater than 0.0 nm and at most 30.0 nm or less, preferably of the order of 15 ⁇ m; , 0 nm,
• a first transparent coating made of silicon nitride dielectric material said coating having an optical thickness in the range of values ranging from 65.8 nm to 89.0 nm, preferably of the order of 77.4 nm; semi-transparent functional stainless steel, the geometric thickness of said coating being in the range of values from 0.1 nm to 1.3 nm, preferably of the order of 0.7 nm,
• a second transparent coating made of silicon nitride dielectric material said coating having an optical thickness in the range of values ranging from 114.6 nm to 151.8 nm, preferably of the order of 133.2 nm,
• a metal coating ensuring the opacity or quasi-opacity of said stack the geometric thickness of said coating providing opacity or quasi-opacity being at least 100.0 nm or greater, preferably in the range of value; ranging from 100.0 nm to 200.0 nm, more preferably of the order of 200.0 nm, said coating providing opacity or quasi-opacity being made of stainless steel.
• Said substrate being a quenchable substrate capable of being used as a spandrel and having the same color characteristics as the Stopray Vision-36T type layer glazings.
• the glass-colored substrate 11, said substrate preferably being monolithic, for facing panel according to the invention is such that it comprises, consists, essentially consists of, successively to from the glass sheet, at least:
• a second transparent coating made of dielectric material based on at least one compound chosen from silicon nitride, aluminum nitride, mixed aluminum-silicon nitride, zinc oxide, zinc-tin mixed oxides, nitrides being preferred, their compositions causing little change in the optical properties of the semi-transparent functional coating during their deposition or quenching of the substrate, said coating having an optical thickness of between 30.0 nm and 80.0 nm,
• a metal coating ensuring the opacity or quasi-opacity of said stack the geometric thickness of said coating providing opacity or quasi-opacity being greater than or equal to 100.0 nm, preferably lying in the range of values from 100.0 nm to 200.0 nm, more preferably of the order of 200.0 nm, said coating providing opacity or quasi-opacity comprising at least one metal, a metalloid a nitride or a carbide, preferably said coating ensuring the opacity comprises at least one metal, preferably said metal is selected from chromium, titanium, stainless steel, nickel-chromium alloys.
• the interferential coloring glass substrate for facing panel according to the invention is such that it comprises between the glass sheet and the first transparent coating of dielectric material, at least one coating improving the adhesion in a material having a refractive index at 550 nm between 1.40 and 1.65 such as silicon oxynitride, the geometric thickness of the coating improving the adhesion being at least greater than 0.0 nm and not more than 30.0 nm.
• a coating makes it possible to increase the stability of the stack
• the interferentially colored glass substrate for facing panel according to the invention is such that it comprises above the metal coating providing opacity or quasi-opacity an overlayer, the material constituting said overcoat being based on a compound selected from carbon, silicon oxynitride, silicon nitride, silicon carbide, said overcoat having a Geometric thickness at least greater than or equal to 5.0 nm and not more than 50.0 nm.
• the substrate according to any one of the three preceding embodiments is a quenchable substrate that can be used as a spandrel and has the same color characteristics as the Stopray Neo layer glazings marketed by the AGC company constituting the corresponding zones of vision. the windows of a fully glazed facade.
• the interferentially colored substrate is such that it comprises, consists, essentially consists of, successively from the glass sheet:
• a coating improving the silicon oxynitride adhesion the geometric thickness of the coating improving the adhesion being at least greater than 0.0 nm and at most 30.0 nm or less, preferably of the order of 15 ⁇ m; , 0 nm,
• a first transparent coating made of silicon nitride dielectric material said coating having an optical thickness in the range of values ranging from 130.6 nm to 153.8 nm, preferably of the order of 142.4 nm,
• said coating providing opacity or quasi-opacity being made of stainless steel.
• Said substrate being a quenchable substrate capable of being used as a spandrel and having the same color characteristics as the Stopray Neo layered glazings.
• the interferentially colored substrate said substrate being preferentially monolithic, for facing panel according to the invention is such that it comprises, consists, essentially consists of, successively from the glass sheet:
• a coating improving the silicon oxynitride adhesion the geometric thickness of the coating improving the adhesion being at least greater than 0.0 nm and at most 30.0 nm or less, preferably of the order of 15 ⁇ m; , 0 nm,
• a first transparent coating made of silicon nitride dielectric material said coating having an optical thickness in the range of values ranging from 108.0 nm to 130.0 nm, preferably of the order of 119.0 nm,
• a semi-transparent functional coating made of stainless steel the geometric thickness of said coating being in the range of values ranging from 1.0 nm to 6.0 nm, preferably being of the order of 2.5 nm
• a second transparent coating made of silicon nitride dielectric material said coating having an optical thickness in the range of values ranging from 185.0 nm to 225.0 nm, preferably of the order of 205.0 nm, a coating; metal ensuring the opacity or quasi-opacity of said stack, the geometric thickness of said coating ensuring opacity or quasi-opacity being at least greater than or equal to 100.0 nm, preferably in the range of value from 100 , 0 nm to 200.0 nm, more preferably of the order of 200.0 nm, said coating providing opacity or quasi-opacity being made of stainless steel.
• Said substrate being a quenchable substrate capable of being used as a spandrel and having the same color characteristics as the Stopray Neo layered glazings.
• the interferentially colored glass substrate said substrate being preferably monolithic, for facing panel according to the invention is such that it comprises, consists, essentially consists of, successively from the glass sheet, at least :
• a metal coating ensuring the opacity or quasi-opacity of said stack the geometric thickness of said coating ensuring opacity or quasi-opacity being at least 100.0 nm, preferably within the range of value; ranging from 100.0 nm to 200.0 nm, more preferably of the order of 200.0 nm, said coating providing opacity or quasi-opacity comprising at least one metal, a metalloid, a nitride or a carbide, preferably said coating providing opacity comprises at least one metal, preferably said metal is selected from chromium, titanium, stainless steel, nickel-chromium alloys.
• the interferential coloring glass substrate for facing panel according to the invention is such that it comprises between the glass sheet and the first transparent coating of dielectric material, at least one coating improving the adhesion to a material having a refraction index at 550 nm between 1.40 and 1.65 such as silicon oxynitride, the geometric thickness of the coating improving the adhesion being at least greater than 0.0 nm and at most less than or equal to 30.0 nm.
• a coating makes it possible to increase the stability of the stack
• the interferentially colored glass substrate for facing panel according to the invention is such that it comprises above the metal coating providing opacity or quasi-opacity an overlayer, the material constituting said overcoat being based on a compound selected from carbon, silicon oxynitride, silicon nitride, silicon carbide, said overlayer having a geometric thickness at least greater than or equal to 5.0 nm and not more than 50.0 nm
• the substrate according to any one of the three preceding embodiments is a substrate, possibly tempered, that can be used as a decorative facing panel for interior or exterior applications having L *, a *, b * color characteristics in the CIELAB system.
• the interferentially colored glass substrate said substrate being preferably monolithic, for facing panel according to the invention is such that it comprises, consists, essentially consists of, successively from the glass sheet, at least :
• a coating improving the silicon oxynitride adhesion the geometric thickness of the coating improving the adhesion being at least greater than 0.0 nm and at most less than or equal to 30.0 nm, preferably of the order of 15.0 nm, a first transparent coating made of silicon nitride dielectric material, said coating having an optical thickness of between 120.3 nm and 146.0 nm, preferably of the order of 134.2 nm, a semitransparent functional stainless steel coating, the geometrical thickness of said coating being in the range of values from 1.5 nm to 2.5 nm, preferably of the order of 1.9 nm, a second transparent coating of silicon nitride dielectric material, said coating having an optical thickness of between 250.8 nm and 294.4 nm, preferably of the order of 272.6 nm, a metal coating ensuring the opacity or quasi-opacity of said stack, the geometric thickness of said coating providing opacity or quasi-opacity being greater than or equal to 100, 0 n
• colorimetric coordinates of said substrate being little dependent on the angle of observation
• ⁇ * a variation of the colorimetric coordinates ⁇ * less than or equal to 6 and for any observation angle ranging from 0 ° to 55 ° .
• the glass-colored substrate 11, said substrate preferably being monolithic, for facing panel according to the invention is such that it comprises, consists, essentially consists of, successively to from the glass sheet, at least:
• the interferential coloring glass substrate for facing panel according to the invention is such that it comprises between the glass sheet and the first transparent coating of dielectric material, at least one coating improving the adhesion in a material having a refractive index at 550 nm between 1.40 and 1.65 such as silicon oxynitride, the geometric thickness of the coating improving the adhesion being at least greater than 0.0 nm and not more than 30.0 nm.
• a coating makes it possible to increase the stability of the stack
• the interferential coloring glass substrate for facing panel is such that it comprises above the metal coating providing opacity or quasi-opacity an overlay, the material constituting said overcoat being based on a compound selected from carbon, l silicon oxynitride, silicon nitride, silicon carbide, said overlayer having a geometric thickness of at least greater than or equal to 5.0 nm and at most 50.0 nm or less
• the glass-colored substrate 11, said substrate preferably being monolithic, for facing panel according to the invention is such that it comprises, consists, essentially consists of, successively to from the glass sheet, at least: ⁇ a coating improving the silicon oxynitride adhesion, the geometric thickness of the coating improving the adhesion being at least greater than 0.0 nm and at most less than or equal to 30, 0 nm, preferably of the order of 15.0 nm, ⁇ a first transparent coating made of silicon nitride dielectric material, said coating having an optical thickness of between 116.0 nm and 142.0 nm, preferably of the order of 129.0 nm, a semitransparent functional coating made of stainless steel, the geometrical thickness of said coating being in the range of values ranging from 2.8
• colorimetric coordinates of said substrate being little dependent on the angle of observation
• the glass-colored substrate 11, said substrate preferably being monolithic, for facing panel according to the invention is such that it comprises, consists, essentially consists of, successively to from the glass sheet, at least:
• a metal coating ensuring the opacity or quasi-opacity of said stack the geometric thickness of said coating providing opacity or quasi-opacity being greater than or equal to 100.0 nm, preferably lying in the range of values from 100.0 nm to 200.0 nm, more preferably of the order of 200.0 nm, said coating providing opacity or quasi-opacity comprising at least one metal, a metalloid a nitride or a carbide, preferably said coating ensuring the opacity comprises at least one metal, preferably said metal is selected from chromium, titanium, stainless steel, nickel-chromium alloys.
• the interferential coloring glass substrate for facing panel according to the invention is such that it comprises between the glass sheet and the first transparent coating of dielectric material, at least one coating improving the adhesion in a material having a refractive index at 550 nm between 1.40 and 1.65 such as silicon oxynitride, the geometric thickness of the coating improving the adhesion being at least greater than 0.0 nm and not more than 30.0 nm.
• the interferential colored glass substrate for facing panel according to the invention is such that it comprises above the metallic coating ensuring opacity or quasi-opacity an overlay, the material constituting said overcoat being based on a compound selected from carbon, silicon oxynitride, silicon nitride, silicon carbide, said overcoat having a geometric thickness at least greater than or equal to 5.0 nm and not more than 50.0 nm
• the substrate according to any one of the three preceding embodiments is a substrate, possibly tempered, that can be used as a decorative facing panel for interior or exterior applications having L *, a *, b * color characteristics in the CIELAB system.
• the glass-colored substrate 11, said substrate preferably being monolithic, for facing panel according to the invention is such that it comprises, consists, essentially consists of, successively to from the glass sheet, at least:
• a coating improving the silicon oxynitride adhesion the geometric thickness of the coating improving the adhesion being at least greater than 0.0 nm and at most 30.0 nm or less, preferably of the order of 15 ⁇ m; , 0 nm,
• a first transparent coating of silicon nitride dielectric material said coating having an optical thickness of between 31.8 nm and 101.0 nm, preferably of the order of 66.4 nm,
• a functional semitransparent silver coating optionally under nitrided, the geometrical thickness of said coating being in the range of values ranging from 4.2 nm to 6.4 nm, preferably of the order of 5.4 nm,
• a metal coating ensuring the opacity or quasi-opacity of said stack the geometric thickness of said coating providing opacity or quasi-opacity being greater than or equal to 100.0 nm, preferably lying in the range of values from 100.0 nm to 200.0 nm, more preferably being of the order of 200.0 nm, said coating providing opacity or quasi-opacity being stainless steel.
• Substrate optionally tempered, may be used as a decorative facing panel for interior or exterior applications with L *, a *, b * color characteristics in the CIELAB system such as 38.5 ⁇ L ⁇ 52 , 5, -5.1 ⁇ a * ⁇ -1.1, -
• the glass-colored substrate 11 is inert, said substrate being preferably monolithic, for facing panel according to the invention is such that it comprises, consists, consists essentially of, successively from the glass sheet, at least:
• a metal coating ensuring the opacity or quasi-opacity of said stack the geometric thickness of said coating ensuring opacity or quasi-opacity being greater than or equal to 100.0 nm, preferably including in the range of values from 100.0 nm to 200.0 nm, more preferably of the order of 200.0 nm, said coating providing opacity or quasi-opacity comprising at least one metal, a metalloid a nitride or a carbide, preferably said coating providing opacity comprises at least one metal, preferably said metal is selected from chromium, titanium, stainless steel, nickel-chromium alloys.
• the interferential coloring glass substrate for facing panel according to the invention is such that it comprises between the glass sheet and the first transparent coating of dielectric material, at least one coating improving the adhesion in a material having a refractive index at 550 nm between 1.40 and 1.65 such as silicon oxynitride, the geometric thickness of the coating improving the adhesion being at least greater than 0.0 nm and not more than 30.0 nm.
• a coating makes it possible to increase the stability of the stack
• the interferentially colored glass substrate for facing panel according to the invention is such that it comprises above the metal coating providing opacity or quasi-opacity an overlayer, the material constituting said overcoat being based on a compound selected from carbon, silicon oxynitride, silicon nitride, silicon carbide, said overlayer having a geometric thickness at least greater than or equal to 5.0 nm and not more than 50.0 nm
• the substrate according to any one of the three preceding embodiments is a substrate, possibly tempered, which can be used as a decorative facing panel for interior or exterior applications having color characteristics L *, a *, b * in the CIELAB system.
• the glass-colored substrate 11, said substrate preferably being monolithic, for facing panel according to the invention is such that it comprises, consists, essentially consists of, successively to from the glass sheet, at least:
• a coating improving the silicon oxynitride adhesion the geometric thickness of the coating improving the adhesion being at least greater than 0.0 nm and at most 30.0 nm or less, preferably of the order of 15 ⁇ m; , 0 nm,
• a second transparent coating made of silicon nitride dielectric material said coating having an optical thickness of between 160.0 nm and 195.8 nm, preferably of the order of 178.0 nm, a metal coating ensuring opacity or the quasi-opacity of said stack, the geometric thickness of said coating providing opacity or quasi-opacity being greater than or equal to 100.0 nm, preferably in the range of 100.0 nm to 200.0 nm, more preferably being of the order of 200.0 nm, said coating providing opacity or quasi-opacity being made of stainless steel.
• the substrate is suitable for use as a decorative facing panel for interior or exterior applications having L *, a *, b * color characteristics in the system
• the glass-colored substrate 11, said substrate preferably being monolithic, for facing panel according to the invention is such that it comprises, consists, essentially consists of, successively to from the glass sheet, at least:
• the geometric thickness said coating being in the range of values from 0.5 nm to 50.0 nm, when the semi-transparent functional coating is based on oxidized stainless steel, the geometric thickness of said coating is between 10.0 nm to 40.0 nm, a second transparent coating of dielectric material based on at least one compound selected from an oxide of at least one element selected from zinc, silicon, titanium, tin, aluminum, a mixed oxide of at least two of these elements, preferably the zinc-tin mixed oxide, a silicon nitride, an aluminum nitride, a mixed aluminum-silicon nitride, the nitrides being preferred their deposition causing little modification of the optical properties of the semi-transparent functional coating when the semi-transparent functional coating is based on copper or titanium nitride, said second transparent coating having an optical thickness of between 100.0 nm and 300.0 nm, when the semi-transparent functional coating is based on oxidized stainless steel, Fe 2 0 3 iron oxide and / or
• a metal coating ensuring the opacity or quasi-opacity of said stack the geometric thickness of said coating providing opacity or quasi-opacity being greater than or equal to 100.0 nm, preferably lying in the range of values from 100.0 nm to 200.0 nm, more preferably of the order of 200.0 nm, said coating providing opacity or quasi-opacity comprising at least one metal, a metalloid a nitride or a carbide, preferably said coating ensuring the opacity comprises at least one metal, preferably said metal is selected from chromium, titanium, stainless steel, nickel-chromium alloys.
• the interferential coloring glass substrate for facing panel according to the invention is such that it comprises between the glass sheet and the first transparent coating of dielectric material, at least one coating improving the adhesion in a material having a refractive index at 550 nm between 1.40 and 1.65 such as silicon oxynitride, the geometric thickness of the coating improving the adhesion being at least greater than 0.0 nm and not more than 30.0 nm.
• a coating makes it possible to increase the stability of the stack
• the interferentially colored glass substrate for facing panel according to the invention is such that it comprises above the metal coating providing opacity or quasi-opacity an overlayer, the material constituting said overcoat being based on a compound selected from carbon, silicon oxynitride, silicon nitride, silicon carbide, said overcoat having a geometric thickness of not less than or equal to 5.0 nm and not more than 50.0 nm
• the substrate according to any one of the three preceding embodiments is a substrate, possibly tempered, which can be used as a decorative facing panel for interior or exterior applications having color characteristics L *, a *, b * in the CIELAB system.
• L * 68.0
• a * 4.5
• b * 5.0 and measured according to the illuminant D65 at 10 ° in reflection on the side of the face of the glass sheet not covered by an UltraScan type apparatus and a reflectance of between 33% and 43%, more particularly equal to 38%, measured according to the illuminant D65 at 2 ° in reflection on the side of the face of the glass sheet not covered by an UltraScan type apparatus
• the glass-colored substrate 11, said substrate preferably being monolithic, for facing panel according to the invention is such that it comprises, consists, essentially consists of, successively to from the glass sheet, at least:
• a coating improving the silicon oxynitride adhesion the geometric thickness of the coating improving the adhesion being at least greater than 0.0 nm and at most 30.0 nm or less, preferably of the order of 15 ⁇ m; , 0 nm,
• a first transparent coating made of silicon nitride dielectric material said coating having an optical thickness of between 102.8 nm and 132.4 nm, preferably of the order of 122.6 nm, a semi-transparent functional coating made of stainless steel, the geometric thickness of said coating being included in the range of values from 23.8 nm to 35.8 nm, preferably of the order of 29.8 nm, a second transparent coating made of silicon nitride dielectric material, said coating having an optical thickness of between 120, 5 nm and 232.1 nm, preferably of the order of 193.6 nm, a metal coating ensuring the opacity or quasi-opacity of said stack, the geometric thickness of said coating ensuring opacity or quasi-opacity being greater than or equal to 100.0 nm, preferably lying in the range of 100.0 nm to 200.0 nm, more preferably being of the order of 200.0 nm, said coating ensuring opacity or practically -opacity being in stainless steel.
• L *, a *, b * color characteristics in the CIELAB system such as 61.0 ⁇ L * ⁇ 75, 0, 2.5 ⁇ a * ⁇ 6.5, 2.0 ⁇ b * ⁇ 8.0, more particularly
• a second object of the invention is a method of manufacturing the interferential colored glass substrate for facing panel.
• the method for manufacturing the interferential colored glass substrate for a facing panel according to the invention comprises the following successive steps:
• the optical thickness of the first transparent coating being at least greater than or equal to 5.0 nm, preferentially at least greater than or equal to 10.0 nm, more preferably at least 20.0 nm or more, most preferably at least 50.0 nm or more, preferably at least 70.0 mm or more; nm, more preferably at least greater than or equal to 100.0 nm, most preferably at least greater than or equal to 110.0 nm and at most less than or equal to 258.0 nm, preferably at most less than or equal to at 190.0 nm, more preferably at most less than or equal to 180.0 nm, most preferably at most less than or equal to 150.0 nm, preferably at least u is equal to 120.0 nm, preferably the optical thickness being in the range of values ranging from 5.0 nm, preferably from 10.0 nm, more preferably from 20.0 nm to 25
• the geometric thickness of the metallic functional coating being at least greater than or equal to 0.1 nm, preferably at least greater than or equal to equal to 0.3 nm, more preferably at least greater than or equal to at 0.5 nm and at most less than or equal to 50.0 nm, preferably at most 25.0 nm or less, preferably the geometrical thickness being in the range of values of 0.1 nm, preferably from 0.3 nm to 50.0 nm, preferably from 0.5 nm to 25.0 nm, preferably said semi-transparent functional coating having an absorption of between 10% and 70%, deposition of a second dielectric coating transparent by a cathodic vacuum spraying technique assisted by a magnetic field, the optical thickness of the second transparent coating being at least greater than or equal to 20.0 nm, preferably at least greater than or equal to 30.0 nm, more preferably at least greater than or equal to 100.0 nm,
• the geometrical thickness of said coating ensuring the opacity or the quasi opacity being at least greater than or equal to 30.0 nm, preferably at least greater than or equal to 50.0 nm, more preferably at least greater than or equal to 100.0 nm, the geometric thickness of the coating ensuring opacity; or the quasi-opacity being at most less than or equal to 1000.0 nm, preferably at most less than or equal to 200.0 nm.
• the geometric thickness of said coating is in the range of values ranging from 30.0 nm to 1000.0 nm, preferably from 50.0 nm to 1000 nm, most preferably from 100.0 nm to 200.0 nm.
• a third object of the invention is the use of the interferential colored glass substrate for facing panel according to the invention as facade or lightening facing panel, preferably as facade cladding panel or monolithic spandrel.
• Other uses of this type of facing panel are also possible, for example include reflective or even partially reflective decorative products for indoor or outdoor use in the form of eg shelf elements, cabinet , door, ceiling, support, glass table, wall lamp, partition, shop front, ...
• Fig. 1 Cross section of a glass substrate with interferential coloration for facing panel according to the invention
• Fig. 2 Cross section of an interferentially colored glass substrate for facing panel according to the invention comprising a protective coating.
• Fig. 3 Cross section of a glass substrate with interferential coloration for facing panel according to the invention comprising a first transparent dielectric coating comprising two layers.
• Fig. 4 Cross section of a glass substrate with interferential coloration for facing panel according to the invention, the protective coating comprises an adhesion layer.
• FIG. 1 represents an example of a stack constituting an interferentially colored glass substrate for facing panel according to the invention.
• the interferentially colored glass substrate has the following structure from the glass sheet (1):
• FIG. 2 shows an alternative example of stacking. This comprises, in addition to the coatings already present in Figure 1, a protective coating.
• the interferentially colored glass substrate has the following structure from the glass sheet (1): ⁇ A first transparent dielectric coating (2)
• Figure 3 shows another example of stacking.
• the interferentially colored glass substrate has the following structure from the glass sheet (1):
• Figure 4 shows an alternative example of stacking. This is distinguished from the structure described in Figure 2 by the presence of a protective coating (6) comprising two layers including an adhesion layer (60).
• the interferentially colored glass substrate has the following structure from the second face of the substrate (1): ⁇ A first transparent dielectric coating (2)
• a protective coating (6) comprising an adhesion layer (60)
• the interferential colored glass substrate for a facing panel according to the invention, its embodiment and its use as a decorative facade panel or reflective decorative panel will now be characterized, with the help of examples of achievements described and listed in the tables below. These examples are in no way limitative of the invention.
• the symbols SiON and SiN respectively represent silicon oxynitride and silicon nitride.
• glass substrate according to the invention examples are presented in Table I below, the geometric thicknesses given in brackets are expressed in nanometers, the glass substrate presented can be used as a spandrel or as a reflective decorative facing panel.
• Table I Examples of glass substrate coating stack according to the invention.
• the thicknesses are geometric thicknesses.
• the glass substrate consists of a clear glass sheet not colored in the mass.
• Table II shows the conditions according to which the successive deposits were made on a clear glass sheet not colored in the mass and corresponding to Example 9 shown in Table I. These deposits are made by magnetron sputtering in a laboratory installation.
• Example 9 listed in Table II satisfies in terms of chemical resistance properties to IS012543-4, ISO10545-13, ASTM G53-88 (UV 1000 hours). In addition, good adhesion of the coating stack to the substrate is important. In order to qualify this membership, we defined a membership test, called the AWRT Test, which looks like this:
• a flat circular Teflon head covered with a cotton fabric is dragged on the layer with a constant and integrated load.
• the surface of the layer covered by the friction of the fabric (reference: CODE 40700004 provided by ADSOL) is 2.81 cm 2 and the applied load is 3.850 g.
• Abrasion of the cotton on the coated surface will damage (or remove) the stack of coatings after a number of cycles (250 cycles, preferably 500 cycles).
• Cotton should be kept moist with deionized water for the duration of the test. The speed must be adjusted between 60 and 90 full oscillations (back-and-forth) per minute.
• the test is used to define the threshold where the layer will fade and / or the threshold where scratches appear in the stack of coatings. The sample is observed under an artificial sky to determine if discoloration or scratches can be seen on the sample. No detachment should be identified to pass the test.
• Table III shows the evolution of the colorimetric coordinates expressed in the L *, a *, b * system of the interferential staining panel according to the invention of Example 1 and Example 10 presented in Table I during of the quenching process.
• the panel of interferential staining according to the invention is dipped in an oven, said oven being preheated to a temperature at least greater than 600 ° C, preferably at a temperature equal to 670 ° C.
• the facing panel is tempered for a period of time ranging from 7 minutes to 15 minutes, the parameters L * tv , a , a * tv , a, b * tv , a are measured as a function of the quenching time.
• the parameters L *, a *, b * are measured with an "ULTRASCAN” device with a source conforming to the "daylight” illuminant normalized D65 by the CIE and at a solid angle of 10 °.
• the colorimetric coordinates L *, a *, b * measured after quenching are very little affected by the quenching process (quenching time). Indeed, we observe that the variation of these values expressed in the form of ⁇ * ⁇ , ⁇ , with AE * tv , D
• b * t, v, DD7mni., 67o ° c represent the colorimetric coordinates L *, a *, b * of the interferentially colored glass substrate for facing panel after 7 minutes of quenching at a temperature equal to 670 ° C. C, and L * t;
• V , DDtps, t ° / a * t, v, DDt P s, t ° and b * t , v, DDtps, t ° represent respectively the colorimetric coordinates L *, a *, b * after a quenching treatment of the same interferential colored glass substrate for facing panel for a time tps at a temperature t °.
• Facing panel staining time ⁇ tv a * interference shown in Table I, quenching (min.)
• Tables IV, V, VI, VII and VIII present the colorimetric coordinate revolution simulation expressed in the L *, a *, b * system as a function of the observation angle for glass substrates for facing panels, examples 2, 3, 4, 11, 12 of Table I, according to the invention. These properties are compared with those of various layered glazing units marketed by AGC (Table IV: Stopray Vision-50T IGU, Table V: Stopray Vision-60T IGU, Table VI: Planibel Energy NT IGU, Table VII Stopray Galaxy IGU, Table VIII: Stopray Ultravision 50 IGU).
• IGU designates a structure of "double glazing" type formed from the sun side face of a first sheet of clear glass with a thickness of 6 mm and a second sheet of clear glass with a thickness of 4 mm, the distance separating the two sheets being 16 mm, the atmosphere trapped in the space between the two sheets being made of 90% argon, the first sheet of glass being a Stopray Vision-50T type layered glass, Stopray Vision-60T, Planibel Energy IGU NT, Stopray Ultravision 50 IGU, the layer being located on the inner face of the double glazing (position P2 in the terms used by the skilled person).
• the glass sheets constituting the layered glazing and the interferentially colored facing panel according to the invention having the same chemical composition.
• ⁇ _ * represents the difference between the colorimetric coordinates ⁇ _ *, ⁇ of an opaque zone consisting of the interferentially colored glass substrate for a facade panel obtained by simulation and a viewing zone corresponding to a layered glazing unit. measured,
• Aa * i, a represents the difference between the colorimetric coordinates a * i, a of an opaque zone consisting of the interferentially colored glass substrate for a facade panel obtained by simulation and a vision zone corresponding to a measured layer glazing
• Ab * i, a represents the difference between the colorimetric coordinates b * i, a of an opaque zone consisting of the interferentially colored glass substrate for a facade panel obtained by simulation and a vision zone corresponding to a measured layer glazing .
• Table IX shows the colorimetric coordinates of Examples 5, 6, 7 before quenching and the evolution of the colorimetric coordinates of Examples 5 and 7 before and after quenching.
• the quenching time being of the order of 7 minutes at a temperature of the order of 670 ° C.
• the glass substrate consists of a clear glass sheet not colored in the mass.
• Example 5 can be used as a spandrel.
• Example 7 despite variations in its coordinates Colorimetrically following heat quenching treatment can be used both as a lighter and as a facing panel that does not require thermal tempering, or as a dipping panel.
• This type of panel can be used in the form of reflective or even partially reflective products, decorative products for indoor or outdoor use in the form for example of shelf elements, cabinet, door, ceiling, support , Table glass, wall, partition, storefront, ...
• Table X presents examples of panel examples of glass substrate according to the invention can be used as a spandrel associated with a glazing layer of In the Stopray Vision-50T type, the geometrical thicknesses given in parentheses are expressed in nanometers, the glass substrate presented being used as a spandrel or as a reflective decorative facing panel.
• the glass substrate consists of a clear glass sheet not colored in the mass.
• the symbol ZS09 represents a mixed zinc tin oxide containing 10% by weight of tin relative to the total weight of the zinc and tin metals. Paintings
• Table XI shows the colorimetric coordinates of Example 20 of Table X before quenching before and after quenching.
• the quenching time varies from 7 to 15 minutes at a temperature of the order of 670 ° C.
• the glass substrate consists of a clear glass sheet not colored in the mass, the value ⁇ ⁇ , ⁇ is given with respect to the colorimetric coordinates L *, a *, b * measured after a quenching time of 7 minutes.
• Example 20 can be used as a spandrel associated with a Stopray Vision-50T-type layer glazing because of the small variation in its colorimetric coordinates during the thermal quenching treatment.
• Table XII presents examples of glass substrate according to the invention that can be used as a spandrel associated with a Stopray Vision-36T-type glazing layer marketed by AGC, the geometrical thicknesses given in parentheses are expressed in nanometers, the substrate presented glassware that can be used as a lighter or as a decorative reflective wall panel.
• the glass substrate consists of a clear glass sheet not colored in the mass.
• the symbol ZS09 represents a mixed zinc tin oxide containing 10% by weight of tin relative to the total weight of the zinc and tin metals.
• Table XII represents a mixed zinc tin oxide containing 10% by weight of tin relative to the total weight of the zinc and tin metals.
• Table XIII presents the simulation of the evolution of the colorimetric coordinates expressed in the system L *, a *, b * as a function of the angle of observation for a glass substrate for facing panel, example 21 of Table XII, in accordance with to the invention. These properties are compared to those of a Stopray type vison vison-36T sold by the company AGC.
• the glass sheets constituting the layered glazing and the interferentially colored facing panel according to the invention having the same chemical composition.
• the measurements of the L *, a * and b * coordinates of the layered glazings were carried out with a "SPETRASCAN" apparatus with a source conforming to the "daylight” illuminant normalized D65 by the CIE and at a solid angle of 10 °.
• the simulations of the glass substrates according to the invention were carried out using the CODE program developed by W.
• AL * i a represents the difference between the colorimetric coordinates L * i; a of an opaque zone consisting of the interferentially colored glass substrate for a facade panel obtained by simulation and a viewing zone corresponding to a layered glazing unit measured,
• Aa * i, a represents the difference between the colorimetric coordinates a * i, a of an opaque zone constituted by the glass substrate with interferential staining for a facade panel obtained by simulation and a vision zone corresponding to a measured layer glazing
• Ab * i, a represents the difference between the colorimetric coordinates b * i, a of an opaque zone consisting of the interferentially colored glass substrate for a facade panel obtained by simulation and a vision zone corresponding to a measured layer glazing .
• Table XIV shows the colorimetric coordinates of Example 28 of Table XII before quenching before and after quenching.
• the quenching time varies from 7 to 15 minutes at a temperature of the order of 670 ° C.
• the glass substrate consists of a clear glass sheet not colored in the mass, the value ⁇ ⁇ , ⁇ is given with respect to the colorimetric coordinates L *, a *, b * measured after a quenching time of 7 minutes.
• Example 28 can be used as a spandrel associated with a Stopray Vision-50T-type layer glazing because of the small variation in its colorimetric coordinates during the thermal quenching treatment.
• Table XV shows examples of panels of examples of glass substrate according to the invention that can be used as a spandrel associated with a Stopray Neo type glazing layer marketed by AGC, the geometric thicknesses given in parentheses are expressed in nanometers, the presented glass substrate can be used as a spandrel or as a reflective decorative facing panel.
• the glass substrate consists of a clear glass sheet not colored in the mass.
• the symbol ZS09 represents a mixed zinc tin oxide containing 10% by weight of tin relative to the total weight of the zinc and tin metals. Table XV
• Tables XVI and XVII respectively show the simulation of the evolution of the colorimetric coordinates expressed in the system L *, a *, b * as a function of the observation angle for glass substrates for facing panel, example 29 of the table.
• XV and Example 36 of Table XV in accordance with the invention. These properties are compared to those of a Stopray Neo layer glazing marketed by the company AGC.
• the glass sheets constituting the layered glazing and the interferentially colored facing panel according to the invention having the same chemical composition.
• the measurements of the L *, a * and b * coordinates of the layered glazings were carried out with a "SPETRASCAN" apparatus with a source conforming to the "daylight” illuminant normalized D65 by the CIE and at a solid angle of 10 °.
• the simulations of the glass substrates according to the invention were carried out using the CODE program developed by W.
• ⁇ _ * represents the difference between the colorimetric coordinates ⁇ _ *, ⁇ of an opaque zone consisting of the interferentially colored glass substrate for a facade panel obtained by simulation and a viewing zone corresponding to a layered glazing unit. measured,
• Aa * i, a represents the difference between the colorimetric coordinates a * i, a of an opaque zone consisting of the interferentially colored glass substrate for a facade panel obtained by simulation and a vision zone corresponding to a measured layer glazing
• Ab * i, a represents the difference between the colorimetric coordinates b * i, a of an opaque zone consisting of the interferentially colored glass substrate for a facade panel obtained by simulation and a vision zone corresponding to a measured layer glazing .
• glass substrate according to the invention examples are also presented in Table XVIII below, the geometrical thicknesses given in brackets are expressed in nanometers.
• Table XVIII Examples of glass substrate coating stack according to the invention.
• the glass substrate consists of a clear glass sheet not colored in the mass.
• the presentation type X / Y indicates glass from a first layer of material X followed by a second layer of material Y.
• the first rev. Diel. transp. (sh. Rev. 2nd rev. Rev. Re v. Geom .: 10nm-120nm) diagram. Diel. ensuring protect. semi-transp. opacity ep. geo.:
• the chemical compounds appearing in the form TZO, AZO, ZS05, ZS09 correspond for TZO to a mixed oxide of titanium and zirconium, AZO to an aluminum doped zinc oxide, ZS05 to a mixed oxide of zinc and tin comprising a percentage by weight of zinc of 50%, the ZS09 with a mixed oxide of zinc and tin comprising a weight percentage of zinc of 90%, the weight percentage of zinc is expressed relative to total weight of the metals present in the layer.
• Table XIX shows an example of interferential coloring glass substrate for facing panel according to the invention.
• the glass substrate consists of a clear glass sheet not colored in the mass.
• Table XX shows the conditions according to which the successive deposits were made on a clear glass sheet not colored in the mass and corresponding to the example shown in Table XIX. These deposits are made by magnetron sputtering in a laboratory facility.
• Table XIX satisfies in terms of chemical resistance properties to the standards IS012543-4, ISO10545-13, ASTM G53-88 (UV 1000 hours).
• Table XXI shows the optical properties of the interferentially colored facing panel according to the invention presented in Table XIX after quenching, these properties are compared to those of AGC type V50T layer glazing.
• the glass sheets constituting the layered glazing and the interferentially colored facing panel according to the invention having the same chemical composition. Measurements were made with a "SPETRASCAN" device with a source conforming to the C65 standard daylight illuminant by the CIE and at a solid angle of 10 °.
• Table XXII shows examples of glass substrate according to the invention that can be used as reflective decorative panel, the geometric thicknesses given in parentheses are expressed in nanometers.
• the oxidized stainless steel layer of Example 38 is obtained by magnetized sputtering assisted by a magnetic field from a stainless steel target in an atmosphere containing mainly oxygen.
• Table XXII satisfies in terms of the holding properties of the various tests described below:
• CASS test provides an indication of the corrosion resistance by subjecting the sample to an accelerated salt spray corrosion test in the presence of accelerated copper-acetic acid solution.
• the test sample is placed in a chamber at 50 ° C. and is subjected to the action of a mist formed by spraying with an aqueous solution containing 50 g / l of sodium chloride, 0.26 g / l of chloride. anhydrous cuprous with sufficient glacial acetic acid to bring the pH of the sprayed solution to between 3.1 and 3.3. All the details of this test are described in the international standard ISO 9227- 1990.
• the samples can be subjected to the action of salt spray for different durations, after which the reflection properties of the artificially aged sample can be compared with the reflection properties of the freshly formed sample. It is found that the 120 hour exposure time provides a useful indication of the aging resistance of the sample.
• the CASS test is performed on square shaped samples having a surface of 100 cm 2 and having freshly cut edges. After 120 hours of exposure to acetic acid-based fog containing the copper salt, each cell is subjected to microscopic examination. The main visible evidence of corrosion is a darkening of the coating ensuring the opacity or near-opacity and peeling of said coating on the perimeter of the reflective decorative panel.
• the extent of corrosion is observed at five regularly spaced locations on each of the two opposite edges of the sample and an arithmetic mean of the ten measurements is calculated. It is also possible to measure the maximum corrosion at the margin of the sample in order to obtain a result, also measured in micrometers, preferably the maximum corrosion is less than 300 ⁇ , preferably less than 250 ⁇ .
• the CASS test can be performed on ten samples and the arithmetic mean of the ten samples calculated from the arithmetic mean of each sample.
• the samples have less than five white spots per dm 2 after the CASS test, preferably less than one white spot per dm 2 .
• the bain-marie and wet chamber tests are designed to test the strength and / or compatibility with adhesives.
• a drop of glue with a diameter of about 5 cm is placed on the back of a sample of 10x10 cm, in other words on the coating providing opacity or near-opacity.
• the thickness of the glue is 2 mm, this thickness is obtained by the use of a spacer 2 mm thick.
• the samples are dispensed into the water bath immediately after application of the glue.
• the water temperature of the water bath is regulated at 35 ° C.
• a separate water bath is used.
• the wet chamber test the samples are placed in a wet chamber after 10 days of polymerization of the adhesive at room temperature and ambient conditions.
• the humid chamber is regulated at a temperature of 40 ° C. Both tests have a duration of 20 days.
• the evaluation of the results of these tests are classified under 4 headings:
• the adhesion of the coating stack to the substrate is measured using the AWRT test described above.

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