EP 2000557 B1 20150429 - Erosion barrier for thermal barrier coatings
Title (en)
Erosion barrier for thermal barrier coatings
Title (de)
Erosionssperre für Wärmedämmschichten
Title (fr)
Barrière contre l'érosion pour revêtements de barrière thermique
Publication
Application
Priority
EP 07252248 A 20070604
Abstract (en)
[origin: EP2000557A1] A workpiece, such as a turbine engine component, comprises a substrate (50), a thermal barrier coating (52) on the substrate (50), and a hard erosion barrier (54) deposited over the thermal barrier coating (52). The erosion barrier (54) preferably has a Vickers hardness in the range of from 1300 to 2750 kgf/mm 2 (12.8 to 27.0 GPa). The erosion barrier (54) may be formed from aluminum oxide, silicon carbide, silicon nitride, or molybdenum disilicide. The erosion barrier (54) may be formed using either an electrophoretic deposition process or a slurry process.
IPC 8 full level
C23C 2/04 (2006.01); C23C 24/08 (2006.01); C23C 28/04 (2006.01); C25D 13/02 (2006.01); C25D 15/00 (2006.01)
CPC (source: EP)
C23C 24/08 (2013.01); C23C 28/04 (2013.01); C25D 13/02 (2013.01); F01D 5/286 (2013.01); F01D 5/288 (2013.01); F05D 2230/80 (2013.01)
Designated contracting state (EPC)
DE GB
DOCDB simple family (publication)
DOCDB simple family (application)
EP 07252248 A 20070604