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公开(公告)号：JP2002180270A
公开(公告)日：2002-06-26
申请号：JP2001306089
申请日：2001-10-02
Applicant: UNITED TECHNOLOGIES CORP
Inventor： MULLOOLY JOHN FRANCIS JR , NISSLEY DAVID M , HARTER HAROLD DAVID , SHAH DILIP M , MAHLER FREDERIC H , HASTINGS WILLIAM J III , DONOVAN ROY R , BOSE SUDHANGSHU
IPC: F01D5/08 , C23C4/02 , C23C4/08 , C23C4/10 , C23C28/00 , C23C30/00 , F01D5/28 , F02C7/00 , F02C7/30 , F23R3/42
Abstract: PROBLEM TO BE SOLVED: To provide a thermal barrier coating(TBC) system which has improved thermal insulation characteristics and by which gas turbine engine parts of different shapes, thicknesses and sizes can be treated without requiring a high- temperature heat treatment for adhesion of a bond coat. SOLUTION: The TBC system having improved thermal insulation characteristics without requiring a high-temperature heat treatment for adhesion of a bond coat is applied to gas turbine engine parts of various shapes, thicknesses and sizes. This thermal barrier system requires no high-temperature heat treatment at the above adhesion of the bond coat for producing bonding between the metallic bond coat and a metallic base material. Further, a porous ceramic heat insulating layer is formed on the metallic bond coat. This coating system can be effectively used in particular for metallic parts liable to cause deformation during heat treatment and parts requiring thermal insulation treatment in a mounted state.
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公开(公告)号：JPH1068089A
公开(公告)日：1998-03-10
申请号：JP17138597
申请日：1997-06-27
Applicant: UNITED TECHNOLOGIES CORP
Inventor： MULLOOLY JOHN FRANCIS JR , NISSLEY DAVID M , HARTER HAROLD DAVID , SHAH DILIP M , MAHLER FREDERIC H , HASTINGS WILLIAM J III , DONOVAN ROY R , BOSE SUDHANGSHU
IPC: F01D5/08 , C23C4/02 , C23C4/08 , C23C4/10 , C23C28/00 , C23C30/00 , F01D5/28 , F02C7/00 , F02C7/30 , F23R3/42
Abstract: PROBLEM TO BE SOLVED: To improve heat insulating characteristics by providing a metal bonding coat capable of being adhered without executing high temp. heat treatment and porous ceramics to be deposited thereon. SOLUTION: This heat insulating barrier coating system 12 is applied to the surface at the inside of a primary turbine vane supporting body 14. The material of the vane supporting body 14 is composed of an Ni base alloy. In the coating system 12, at first, a bond coat having a thickness of 0.003 inch is formed by a plasma spraying method in air. The compsn. of the bond coat is composed of, by weight, 23% Co, 17% Cr, 12.5% Al, 0.45% Y, and the balance Ni. Next, the surface of the bond coat is applied with air plasma spraying of zirconia partially stabilized by 6 to 8% yttria to form a porous ceramic layer. At this time, a small amt. of polyester powder is added into the ceramic material to form desired vol.% of narrow pores. In this way, cracks are hardly caused even by the severest engine test.
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Patent Agency Ranking
公开(公告)号：DE69707365D1
公开(公告)日：2001-11-22
申请号：DE69707365
申请日：1997-06-27
Applicant: UNITED TECHNOLOGIES CORP
Inventor： MULLOOLY JOHN FRANCIS JR , NISSLEY DAVID M , HARTER HAROLD DAVID , SHAH DILIP M , MAHLER FREDERIC H , HASTINGS WILLIAM J III , DONOVAN ROY R , BOSE SUDHANGSHU
IPC: F01D5/08 , C23C4/02 , C23C4/08 , C23C4/10 , C23C28/00 , C23C30/00 , F01D5/28 , F02C7/00 , F02C7/30 , F23R3/42 , C23C4/04
Abstract: The invention concerns a thermal barrier coating system (12) requiring no bond coat adherence high temperature heat treatment and having enhanced insulating capabilities such that it may be applied to gas turbine engine components of varied shape, thickness and size. In preferred embodiments, the system includes a metallic bond coat which does not require a bond coat adherence high temperature heat treatment to form a bond between the metallic bond coat and a metallic substrate to which it is applied. A porous ceramic insulating layer is deposited on the metallic bond coat. In another preferred embodiment, the porous ceramic insulating layer is deposited directly on the metallic substrate. The coating system is particularly advantageous for insulating metallic components prone to distortion in heat treatment and those requiring insulation in an as machined condition.
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公开(公告)号：ES2153941T3
公开(公告)日：2001-03-16
申请号：ES96307035
申请日：1996-09-26
Applicant: UNITED TECHNOLOGIES CORP
Inventor： NISSLEY DAVID M , HARTER HAROLD D , GODIN DANIEL R , FOSTER GEORGE E
Abstract: A segmented abradable ceramic coating system having superior abradability and erosion resistance is disclosed. The system includes a duct segment having a metallic substrate 12, a MCrA1Y bond coat 14 on the substrate and a segmented abradable ceramic coating 16 on the bond coat. The segmented abradable ceramic coating includes a base coat foundation layer 18, a graded interlayer 20 and an abradable top layer 22 for an overall thickness of preferably about 50 mils (1.270 mm). The coating is characterized by a plurality of vertical microcracks. By precisely controlling the deposition parameters, composition of the layers and layer particle morphology, segmentation is achieved, as well as superior abradability and erosion resistance.
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公开(公告)号：DE69611138D1
公开(公告)日：2001-01-11
申请号：DE69611138
申请日：1996-09-26
Applicant: UNITED TECHNOLOGIES CORP
Inventor： NISSLEY DAVID M , HARTER HAROLD D , GODIN DANIEL R , FOSTER GEORGE E
Abstract: A segmented abradable ceramic coating system having superior abradability and erosion resistance is disclosed. The system includes a duct segment having a metallic substrate 12, a MCrA1Y bond coat 14 on the substrate and a segmented abradable ceramic coating 16 on the bond coat. The segmented abradable ceramic coating includes a base coat foundation layer 18, a graded interlayer 20 and an abradable top layer 22 for an overall thickness of preferably about 50 mils (1.270 mm). The coating is characterized by a plurality of vertical microcracks. By precisely controlling the deposition parameters, composition of the layers and layer particle morphology, segmentation is achieved, as well as superior abradability and erosion resistance.
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公开(公告)号：DE69707365T2
公开(公告)日：2002-07-11
申请号：DE69707365
申请日：1997-06-27
Applicant: UNITED TECHNOLOGIES CORP
Inventor： MULLOOLY JOHN FRANCIS JR , NISSLEY DAVID M , HARTER HAROLD DAVID , SHAH DILIP M , MAHLER FREDERIC H , HASTINGS WILLIAM J III , DONOVAN ROY R , BOSE SUDHANGSHU
IPC: F01D5/08 , C23C4/02 , C23C4/08 , C23C4/10 , C23C28/00 , C23C30/00 , F01D5/28 , F02C7/00 , F02C7/30 , F23R3/42 , C23C4/04
Abstract: The invention concerns a thermal barrier coating system (12) requiring no bond coat adherence high temperature heat treatment and having enhanced insulating capabilities such that it may be applied to gas turbine engine components of varied shape, thickness and size. In preferred embodiments, the system includes a metallic bond coat which does not require a bond coat adherence high temperature heat treatment to form a bond between the metallic bond coat and a metallic substrate to which it is applied. A porous ceramic insulating layer is deposited on the metallic bond coat. In another preferred embodiment, the porous ceramic insulating layer is deposited directly on the metallic substrate. The coating system is particularly advantageous for insulating metallic components prone to distortion in heat treatment and those requiring insulation in an as machined condition.
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公开(公告)号：DE69611138T2
公开(公告)日：2001-07-19
申请号：DE69611138
申请日：1996-09-26
Applicant: UNITED TECHNOLOGIES CORP
Inventor： NISSLEY DAVID M , HARTER HAROLD D , GODIN DANIEL R , FOSTER GEORGE E
Abstract: A segmented abradable ceramic coating system having superior abradability and erosion resistance is disclosed. The system includes a duct segment having a metallic substrate 12, a MCrA1Y bond coat 14 on the substrate and a segmented abradable ceramic coating 16 on the bond coat. The segmented abradable ceramic coating includes a base coat foundation layer 18, a graded interlayer 20 and an abradable top layer 22 for an overall thickness of preferably about 50 mils (1.270 mm). The coating is characterized by a plurality of vertical microcracks. By precisely controlling the deposition parameters, composition of the layers and layer particle morphology, segmentation is achieved, as well as superior abradability and erosion resistance.
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