EP2002029A1 - Procédé de fabrication d'une couche d'isolation thermique et couche d'isolation thermique pour un élément de construction - Google Patents

Procédé de fabrication d'une couche d'isolation thermique et couche d'isolation thermique pour un élément de construction

Info

Publication number
EP2002029A1
EP2002029A1 EP07764320A EP07764320A EP2002029A1 EP 2002029 A1 EP2002029 A1 EP 2002029A1 EP 07764320 A EP07764320 A EP 07764320A EP 07764320 A EP07764320 A EP 07764320A EP 2002029 A1 EP2002029 A1 EP 2002029A1
Authority
EP
European Patent Office
Prior art keywords
thermal barrier
barrier coating
component
coating
ceramic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP07764320A
Other languages
German (de)
English (en)
Inventor
Thomas Cosack
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MTU Aero Engines AG
Original Assignee
MTU Aero Engines GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by MTU Aero Engines GmbH filed Critical MTU Aero Engines GmbH
Publication of EP2002029A1 publication Critical patent/EP2002029A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
    • C23C14/54—Controlling or regulating the coating process
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
    • C23C14/08—Oxides
    • C23C14/083—Oxides of refractory metals or yttrium
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
    • C23C14/54—Controlling or regulating the coating process
    • C23C14/542—Controlling the film thickness or evaporation rate
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
    • C23C28/32—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer
    • C23C28/321—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer with at least one metal alloy layer
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
    • C23C28/32—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer
    • C23C28/321—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer with at least one metal alloy layer
    • C23C28/3215—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer with at least one metal alloy layer at least one MCrAlX layer
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
    • C23C28/34—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates
    • C23C28/345—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates with at least one oxide layer
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
    • C23C28/34—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates
    • C23C28/345—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates with at least one oxide layer
    • C23C28/3455—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates with at least one oxide layer with a refractory ceramic layer, e.g. refractory metal oxide, ZrO2, rare earth oxides or a thermal barrier system comprising at least one refractory oxide layer
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/28—Selecting particular materials; Particular measures relating thereto; Measures against erosion or corrosion
    • F01D5/288—Protective coatings for blades
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2230/00—Manufacture
    • F05D2230/30—Manufacture with deposition of material
    • F05D2230/31—Layer deposition
    • F05D2230/313—Layer deposition by physical vapour deposition
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2230/00—Manufacture
    • F05D2230/30—Manufacture with deposition of material
    • F05D2230/31—Layer deposition
    • F05D2230/314—Layer deposition by chemical vapour deposition
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2230/00—Manufacture
    • F05D2230/90—Coating; Surface treatment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/60—Properties or characteristics given to material by treatment or manufacturing
    • F05D2300/611—Coating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24174—Structurally defined web or sheet [e.g., overall dimension, etc.] including sheet or component perpendicular to plane of web or sheet

Definitions

  • the present invention relates to a method for producing a ceramic thermal barrier coating on a component for use in compressor and turbine components by means of a vapor deposition method and to a thermal barrier coating for components for use in compressor and turbine components, wherein the thermal barrier coating usually comprises a columnar or stalk-like structured ceramic thermal barrier coating and the columns or stems are oriented substantially perpendicular to a component surface.
  • the invention further relates to a component for use in compressor and turbine components consisting of a metallic substrate and a heat-insulating layer at least partially applied to the metallic substrate.
  • ⁇ method for producing a ceramic thermal barrier coating on components in particular for use in compressor and turbine components are known.
  • a ceramic layer is applied to the component either by a plasma spraying process or by means of physical vapor deposition (PVD).
  • PVD physical vapor deposition
  • the columns or stems have a constant thickness along their length.
  • a columnar substructure of the columns or stems is homogeneous.
  • the ceramic thermal barrier coatings produced in this way have the advantage over the thermal barrier coatings produced by a thermal spray process that they have improved thermal resistance due to the pillar structure.
  • the individual stems or columns to expand and 'contraction allow the stems to structure, without leading to tensions that can lead to individual in extreme cases, to break off parts of the thermal barrier coating.
  • the additional application of heat-insulating ceramic layers to said components the component material temperature is lowered and thus maintain the strength.
  • Zirconium oxide with various stabilizers, in particular yttrium oxide is usually used as the ceramic material.
  • a method for producing ceramic thermal barrier coatings and corresponding thermal barrier coatings for metallic components for use in compressor and turbine components are known from DE 601 03 526 T2, the DE 693 18 856 T2 and US Pat. Nos. 4, 321, 311 A., 4, 401, 697 A, 4, 405, 659 A and 5, 514, 482.
  • a disadvantage of the known methods for producing ceramic thermal barrier coatings, as well as thermal barrier coatings produced therefrom is j edoch that abl through the use of physical vapor agerungsver- drive 1 relatively dense columnar or. stem-like structures arise.
  • the relatively high density disadvantageously favors the heat flow within the ceramic thermal barrier coating.
  • a component for. Use in compressor and turbine components to provide consisting of a metallic substrate and a thermal barrier coating at least partially applied to the metallic substrate, wherein the 'thermal barrier coating has a compared to known thermal barrier coatings, in particular significantly, reduced thermal conductivity.
  • a method for producing a ceramic thermal barrier coating on a component for use in compressor and turbine components comprises a vapor deposition method comprising the following steps: a) providing a ceramic vapor for deposition on the component; b) deposition of the ceramic vapor on the component to form a columnar or stalk-like . structured thermal barrier coating, 'wherein the pillars or stems are oriented substantially perpendicular to a component surface; and c) varying at least one process parameter during process step b), such that the The resulting heat-insulating layer comprises columns or stems which alternately have decreasing and enlarging diameters.
  • the vapor deposition process is a physical vapor deposition process, such as an electron beam vapor deposition process.
  • the resulting columns or stems alternately have decreasing and increasing diameters. Due to the alternately decreasing and enlarging diameters in the course of the layer formation of the thermal barrier coating, pores develop between the individual columns or stems, which contribute to a significant reduction of the heat flow and thus the thermal conductivity of the resulting thermal barrier coating.
  • the feature of the decreasing and enlarging diameter is also to be understood in particular as meaning that adjacent columns or stems at least in sections do not touch each other over their length and do not run parallel. The same applies to a possibly occurring substructure. Prevent also advantageously the small diameter of the individual stems or columns heat flow mas ⁇ -intensive, so it is also concluded to a significant reduction of the thermal conductivity of the resultant thermal barrier coating.
  • the process is carried out in a coating chamber, in particular a vacuum chamber.
  • a coating chamber in particular a vacuum chamber.
  • the component is usually heated or heated at least on the component surface to be coated.
  • process step b are fed) oxygen and inert gas and the varying of at least a 'process parameters during process step c) processing the variation of the partial pressure of oxygen and / or the inert gas during the coating or included in the coating chamber ,
  • the partial pressures and also the total pressure can be regulated via the gas flows or the pumping power.
  • the component to be coated is moved and the variation of at least one process parameter during the process step c) the variation of Type of component movement and / or component speed during loading 'layering includes.
  • the component can in particular be rotated, so that the variation of at least one process parameter during the method step c) comprises the variation of the rotational speed during the coating.
  • the variation of. at least one process parameter during the process step c) comprises the variation of the deposition rate of the ceramic vapor on the component during the coating.
  • a variation of the pressure during the coating or in the coating chamber for varying at least one process parameter during the process step c) is possible.
  • the layered structure of the ceramic thermal barrier coating according to the invention results, with the resulting columns or stems alternately shrinking and enlarging diameters along their longitudinal extent.
  • the ker, amic vapor or the ceramic material used comprises zirconium oxide, yttrium oxide or a mixture thereof. Other ceramic materials are conceivable.
  • the thermal barrier coating is deposited in a thickness between 1 and 400 microns, but other layer thicknesses are conceivable.
  • an adhesive layer is at least partially formed between the component surface to be coated and in the thermal barrier coating.
  • the adhesive layer may consist of MCrAlY-alloyed / Al-enriched surfaces, or Pt / Al.
  • the adhesive layer can be applied by means of known thermal spraying, galvanic, diffusion treatment or by means of physical Darapfablagerungs vide.
  • at least partially an intermediate layer of aluminum oxide is formed between the component surface to be coated and the adhesive layer.
  • a thermal barrier coating according to the invention is made of ceramic material and 'has a columnar or columnar grain structure or like structure, the columns or stems are oriented substantially perpendicular to a component surface.
  • the columns or stems have decreasing and increasing diameters along their longitudinal extent.
  • the grain boundaries of the individual columns or stems may at least partially touch each other, pore spaces are advantageously formed between the individual columns or stems. det.
  • the ceramic material of the thermal barrier coating comprises zirconium oxide, yttrium oxide or a mixture thereof.
  • the thermal barrier coating usually has a thickness between 1 and -400 microns, although other thicknesses are conceivable.
  • An inventive component for use 'in compressor and turbine components made of a metallic substrate and one on the metallic substrate at least partially applied thermal barrier coating according to the invention, as described above.
  • a correspondingly coated member has due to the significant reduction of the thermal conductivity of the thermal barrier coating of the present invention a significantly lower Ver 'wear rate at a correspondingly higher service life. .
  • At least partially an adhesive layer in particular of MCrAlY and Pt / Al, may be formed between the substrate and the thermal barrier coating. It is also possible that at least partially an intermediate layer of aluminum oxide is formed between the substrate and the adhesive layer.
  • the component according to the invention is in particular 1 part of a gas turbine, nentriebwerks.
  • Fig. 1 is a schematic sectional view of a component with a thermal barrier coating according to the prior art.
  • Fig. 2 i is a schematic sectional view of a component with a thermal barrier coating according to the invention.
  • FIG. 1 shows a schematic sectional view of a component or a metallic substrate 18 with a heat-insulating material arranged thereon.
  • Layer 22 An adhesive layer 20, in particular of MCrAlY or Pt / Al, is formed between the heat-insulating layer 22 and the component surface 16.
  • the thermal barrier coating 22, 22 has a columnar or stalk-like structure, wherein the individual columns or stems 24 are aligned substantially perpendicular to the component surface 16.
  • the grain boundaries 26, 28 each of different columns 24 touch . This results in a relatively dense columnar structure, which favors the heat flow within the ceramic thermal barrier coating 22.
  • FIG. 2 shows, in a schematic sectional view, a ceramic thermal barrier coating 10 which has been applied or deposited on a component surface 16 of the component 18.
  • the thermal barrier coating 10 in turn consists of columns or stems 12 which are aligned in 'substantially perpendicular to the component surface sixteenth
  • the columns or stems 12 * illustrated in FIG. 2 have alternatingly decreasing and increasing diameters d, D along their longitudinal extent.
  • the grain boundaries 30 of the individual stems at least partly touch, but that form spaces 14 are formed between the individual columns or stems 12. Due to the small diameter, d in the individual stems or individual columns, the heat flow within the thermal barrier coating 10 is hindered massively.
  • the density of the thermal barrier coating 10 is significantly reduced by the pores 14, so that thereby also the heat flow within the thermal barrier coating 10 is significantly reduced.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Physical Vapour Deposition (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

La présente invention concerne un procédé de fabrication d'une couche (10) d'isolation thermique en céramique sur un élément (18) de construction destiné à être utilisé dans des composants de compresseur et de turbine au moyen d'un procédé de déposition à vapeur, le procédé comprenant les étapes suivantes : a) mettre à disposition une vapeur de céramique pour la déposition sur l'élément (18) de construction ; b) déposer la vapeur de céramique sur l'élément (18) de construction pour former une couche d'isolation thermique structurée en forme de colonnes ou de tiges, les colonnes ou les tiges (12) étant alignées sensiblement perpendiculairement à une surface (16) de l'élément de construction ; et c) modifier au moins un paramètre du procédé pendant l'étape (b) de telle sorte que la couche d'isolation thermique obtenue comprenne des colonnes ou des tiges (12) qui présentent en alternance des diamètres (d, D) qui diminuent et qui augmentent. L'invention concerne en outre une couche d'isolation thermique pour des éléments (18) de construction destinés à être utilisés dans des composants de compresseur et de turbine, la couche (10) d'isolation thermique se composant d'une couche d'isolation thermique en céramique structurée en forme de colonnes ou de tiges et les colonnes ou les tiges (12) étant alignées sensiblement perpendiculairement à une surface (16) de l'élément de construction. Conformément à l'invention, les colonnes ou les tiges (12) présentent en alternance des diamètres (d, D) qui diminuent et qui augmentent.
EP07764320A 2006-03-09 2007-03-02 Procédé de fabrication d'une couche d'isolation thermique et couche d'isolation thermique pour un élément de construction Withdrawn EP2002029A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006010860A DE102006010860A1 (de) 2006-03-09 2006-03-09 Verfahren zur Herstellung einer Wärmedämmschicht und Wärmedämmschicht für ein Bauteil
PCT/DE2007/000390 WO2007118439A1 (fr) 2006-03-09 2007-03-02 Procédé de fabrication d'une couche d'isolation thermique et couche d'isolation thermique pour un élément de construction

Publications (1)

Publication Number Publication Date
EP2002029A1 true EP2002029A1 (fr) 2008-12-17

Family

ID=38038055

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07764320A Withdrawn EP2002029A1 (fr) 2006-03-09 2007-03-02 Procédé de fabrication d'une couche d'isolation thermique et couche d'isolation thermique pour un élément de construction

Country Status (7)

Country Link
US (1) US20090075024A1 (fr)
EP (1) EP2002029A1 (fr)
JP (1) JP2009529606A (fr)
CN (1) CN101400820A (fr)
CA (1) CA2643823A1 (fr)
DE (1) DE102006010860A1 (fr)
WO (1) WO2007118439A1 (fr)

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DE102007043791A1 (de) * 2007-09-13 2009-04-02 Mtu Aero Engines Gmbh Verfahren zur Herstellung einer Wärmedämmschicht und Wärmedämmschicht
US20100304037A1 (en) * 2009-06-01 2010-12-02 United Technologies Corporation Thermal Barrier Coatings and Application Methods
FR2962447B1 (fr) * 2010-07-06 2013-09-20 Snecma Barriere thermique pour aube de turbine, a structure colonnaire avec des colonnes espacees
CN103552311B (zh) * 2013-10-23 2015-08-05 沈阳黎明航空发动机(集团)有限责任公司 一种用于单晶高温合金的防护涂层及其制备方法
DE102015206332A1 (de) * 2015-04-09 2016-10-13 Siemens Aktiengesellschaft Verfahren zur Herstellung einer Korrosionsschutzschicht für Wärmedämmschichten aus hohlen Aluminiumoxidkugeln und äußerster Glasschicht und Bauteil
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CN101400820A (zh) 2009-04-01
DE102006010860A1 (de) 2007-09-13
US20090075024A1 (en) 2009-03-19
JP2009529606A (ja) 2009-08-20
WO2007118439A1 (fr) 2007-10-25

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