EP 1908857 A2 20080409 - Method for forming a thermal barrier coating
Title (en)
Method for forming a thermal barrier coating
Title (de)
Verfahren zur Bildung einer Wärmedämmschicht
Title (fr)
Procédé de formation d'un revêtement de barrière thermique
Publication
Application
Priority
US 54360906 A 20061005
Abstract (en)
Method including providing a nickel aluminide intermetallic overlay coating (24) on a superalloy substrate (22) and growing a controlled aluminum oxide on the overlay coating. The overlay coating is pre-oxidized to promote the growth of predominantly alpha phase alumina scale (28). The pre-oxidizing conditions may include heating the coated substrate to 1121 °C for two to eight hours under vacuum. The pre-oxidized overlay coating may be used as an environmental coating or as a bond coat for a thermally insulating ceramic barrier coating (26).
IPC 8 full level
C23C 4/08 (2006.01); C23C 4/18 (2006.01); C23C 30/00 (2006.01)
CPC (source: EP)
C23C 4/073 (2016.01); C23C 4/18 (2013.01); C23C 30/00 (2013.01)
Designated contracting state (EPC)
DE FR GB
Designated extension state (EPC)
AL BA HR MK RS
DOCDB simple family (publication)
EP 1908857 A2 20080409; EP 1908857 A3 20091014; BR PI0705144 A 20081021; CA 2604570 A1 20080405; JP 2008095191 A 20080424; SG 141412 A1 20080428; SG 161232 A1 20100527
DOCDB simple family (application)
EP 07117636 A 20071001; BR PI0705144 A 20071003; CA 2604570 A 20070927; JP 2007259328 A 20071003; SG 2007166523 A 20071005; SG 2010023398 A 20071005