EP 1008672 A1 20000614 - Platinum modified diffusion aluminide bond coat for a thermal barrier coating system
Title (en)
Platinum modified diffusion aluminide bond coat for a thermal barrier coating system
Title (de)
Durch Platin modifizierte Aluminid-Diffusionsverbundschicht für thermische Sperrschichtsysteme
Title (fr)
Couche de liaison d'aluminiure au platine obtenue par diffusion pour revêtement dit de barrière thermique
Publication
Application
Priority
- EP 98310176 A 19981211
- JP 35556898 A 19981215
Abstract (en)
A thermal barrier coating system (20) and a method for forming the coating system (20) on a component (22) designed for use in a hostile thermal environment, such as superalloy turbine, combustor and augmentor components of a gas turbine engine. The method is particularly directed to a thermal barrier coating system (20) that includes a thermal insulating ceramic layer (26) and a diffusion aluminide bond coat (24) on which an aluminum oxide scale is grown to protect the underlying surface of the component (22) and to chemically bond the ceramic layer (26). The bond coat (24) is formed to contain an additive metal of platinum, palladium, rhodium, chromium and/or silicon, and an additive element of yttrium, and/or zirconium with possible additions of hafnium. The bond coat (24) may be formed by codepositing aluminum with the active element, or by depositing the additive metal and active element on the surface of the component (22), and then aluminizing to form the diffusion aluminide bond coat (24). <IMAGE>
IPC 1-7
IPC 8 full level
C23C 28/04 (2006.01); C23C 28/00 (2006.01); F01D 5/28 (2006.01)
CPC (source: EP)
C23C 28/00 (2013.01); F01D 5/288 (2013.01)
Citation (search report)
- [X] EP 0821078 A1 19980128 - HOWMET RES CORP [US]
- [A] EP 0733723 A1 19960925 - HOWMET CORP [US]
- [DA] US 5514482 A 19960507 - STRANGMAN THOMAS E [US]
Citation (examination)
- EP 0995817 A1 20000426 - INTERTURBINE NV [NL]
- EP 0992612 A2 20000412 - GEN ELECTRIC [US]
- EP 0987347 A1 20000322 - GEN ELECTRIC [US]
- EP 1191122 B1 20030910 - HOWMET RES CORP A DELAWARE COR [US]
Designated contracting state (EPC)
DE FR GB IT NL
DOCDB simple family (publication)
EP 1008672 A1 20000614; JP 2000178764 A 20000627; JP 3096026 B2 20001010
DOCDB simple family (application)
EP 98310176 A 19981211; JP 35556898 A 19981215