WO2008044128A3 - Innovative technique for improving the dielectric and anticorrosion characteristics of coatings obtained with thermal spray, aps, hvof and analogous technologies, in particular insulating coats such as al2o3 - Google Patents

Innovative technique for improving the dielectric and anticorrosion characteristics of coatings obtained with thermal spray, aps, hvof and analogous technologies, in particular insulating coats such as al2o3 Download PDF

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Publication number
WO2008044128A3
WO2008044128A3 PCT/IB2007/003028 IB2007003028W WO2008044128A3 WO 2008044128 A3 WO2008044128 A3 WO 2008044128A3 IB 2007003028 W IB2007003028 W IB 2007003028W WO 2008044128 A3 WO2008044128 A3 WO 2008044128A3
Authority
WO
WIPO (PCT)
Prior art keywords
hvof
aps
al2o3
dielectric
improving
Prior art date
Application number
PCT/IB2007/003028
Other languages
French (fr)
Other versions
WO2008044128A2 (en
Inventor
Gianfranco Cirri
Maria Prudenziati
Original Assignee
Inglass Spa
Gianfranco Cirri
Maria Prudenziati
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 Inglass Spa, Gianfranco Cirri, Maria Prudenziati filed Critical Inglass Spa
Publication of WO2008044128A2 publication Critical patent/WO2008044128A2/en
Publication of WO2008044128A3 publication Critical patent/WO2008044128A3/en

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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
    • 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
    • C23C28/04—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 only coatings of inorganic non-metallic material
    • 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
    • C23C28/322—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer only coatings of metal elements only
    • 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
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
    • C23C4/10—Oxides, borides, carbides, nitrides or silicides; Mixtures thereof
    • C23C4/11—Oxides
    • 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
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/18—After-treatment

Abstract

An innovative technique for improving the dielectric and anticorrosion characteristics of coatings obtained with thermal spray, APS, HVOF and analogous technologies, in particular insulating coats such as Al2O3. The deposits obtained with APS, HVOF and analogous technologies generally have a varying inherent porosity but is particularly significant for insulating coatings such as Al2O3, which suffer badly, in the breakdown tests, from the corona effect, a characteristic of non-compact materials. Said porosity furthermore permits the occurrence of phenomena of corrosion of the substrate due both to oxidisation and to interaction with corrosive gases and liquids penetrating through the open pores. The use of a sealing agent consisting of a suspension of glass particles with appropriate granulometry and coefficient of expansion in specific liquids, for example screen-printed and re-melted, seals the open pores of the coats obtained with APS, HVOF or similar, thus preventing all phenomena of corrosion and drastically reducing the corona effect.
PCT/IB2007/003028 2006-10-12 2007-10-11 Innovative technique for improving the dielectric and anticorrosion characteristics of coatings obtained with thermal spray, aps, hvof and analogous technologies, in particular insulating coats such as al2o3 WO2008044128A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000322A ITMO20060322A1 (en) 2006-10-12 2006-10-12 INNOVATIVE TECHNIQUE FOR THE IMPROVEMENT OF THE DIELECTRIC AND ANTI-CORROSION CHARACTERISTICS OF FINISHES OBTAINED WITH THERMAL SPRAY, APS, HVOF AND ANALOGUE TECHNOLOGIES, IN PARTICULAR OF INSULATING REPORTS SUCH AS FOR ES. A1203.
ITMO2006A000322 2006-10-12

Publications (2)

Publication Number Publication Date
WO2008044128A2 WO2008044128A2 (en) 2008-04-17
WO2008044128A3 true WO2008044128A3 (en) 2008-06-12

Family

ID=39166877

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2007/003028 WO2008044128A2 (en) 2006-10-12 2007-10-11 Innovative technique for improving the dielectric and anticorrosion characteristics of coatings obtained with thermal spray, aps, hvof and analogous technologies, in particular insulating coats such as al2o3

Country Status (2)

Country Link
IT (1) ITMO20060322A1 (en)
WO (1) WO2008044128A2 (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2305672A (en) * 1995-09-29 1997-04-16 Aea Technology Plc An electrically isolating support for electronic components
US5714243A (en) * 1990-12-10 1998-02-03 Xerox Corporation Dielectric image receiving member
US5925228A (en) * 1997-01-09 1999-07-20 Sandia Corporation Electrophoretically active sol-gel processes to backfill, seal, and/or densify porous, flawed, and/or cracked coatings on electrically conductive material
EP1111089A1 (en) * 1999-12-13 2001-06-27 Sulzer Markets and Technology AG Method of sealing a porous layer onto the surface of an object, in particular for sealing a thermally sprayed layer
US20030170472A1 (en) * 2000-12-12 2003-09-11 Konica Corporation Layer forming method, product comprising the layer, optical film, dielectric-coated electrode and plasma discharge apparatus
US20030228416A1 (en) * 2002-06-11 2003-12-11 Shunichi Iwamaru Dielectric-coated electrode, plasma discharge treatment apparatus and method for forming thin film
WO2007140494A1 (en) * 2006-06-07 2007-12-13 Ab Mikroelektronik Gesellschaft Mit Beschränkter Haftung Circuit carrier

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5714243A (en) * 1990-12-10 1998-02-03 Xerox Corporation Dielectric image receiving member
GB2305672A (en) * 1995-09-29 1997-04-16 Aea Technology Plc An electrically isolating support for electronic components
US5925228A (en) * 1997-01-09 1999-07-20 Sandia Corporation Electrophoretically active sol-gel processes to backfill, seal, and/or densify porous, flawed, and/or cracked coatings on electrically conductive material
EP1111089A1 (en) * 1999-12-13 2001-06-27 Sulzer Markets and Technology AG Method of sealing a porous layer onto the surface of an object, in particular for sealing a thermally sprayed layer
US20030170472A1 (en) * 2000-12-12 2003-09-11 Konica Corporation Layer forming method, product comprising the layer, optical film, dielectric-coated electrode and plasma discharge apparatus
US20030228416A1 (en) * 2002-06-11 2003-12-11 Shunichi Iwamaru Dielectric-coated electrode, plasma discharge treatment apparatus and method for forming thin film
WO2007140494A1 (en) * 2006-06-07 2007-12-13 Ab Mikroelektronik Gesellschaft Mit Beschränkter Haftung Circuit carrier

Also Published As

Publication number Publication date
ITMO20060322A1 (en) 2008-04-13
WO2008044128A2 (en) 2008-04-17

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