EP 2000557 A1 20081210 - 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)
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)
Citation (applicant)
- EP 0783043 A1 19970709 - GEN ELECTRIC [US]
- EP 1788122 A1 20070523 - GEN ELECTRIC [US]
Citation (search report)
- [X] EP 0783043 A1 19970709 - GEN ELECTRIC [US]
- [XY] EP 1788122 A1 20070523 - GEN ELECTRIC [US]
- [Y] WO 2005071141 A1 20050804 - UNIV MANCHESTER [GB], et al
- [A] US 6261643 B1 20010717 - HASZ WAYNE CHARLES [US], et al
- [A] US 2001051218 A1 20011213 - WITTENAUER JEROME P [US], et al
- [A] US 2004115416 A1 20040617 - NONNINGER RALPH [DE], et al
- [A] EP 0381179 A2 19900808 - ENGELHARD CORP [US]
- [A] WO 9526431 A1 19951005 - UNITED TECHNOLOGIES CORP [US]
Designated contracting state (EPC)
DE GB
Designated extension state (EPC)
AL BA HR MK RS
DOCDB simple family (publication)
DOCDB simple family (application)
EP 07252248 A 20070604