Title:
THERMAL BARRIER COATING HAVING A THIN, HIGH STRENGTH BOND COAT
Document Type and Number:
WIPO Patent Application WO2001075192
Kind Code:
A3
Abstract:
A thermal barrier coating for nickel based superalloy articles such as turbine engine vanes and blades that are exposed to high temperature gas is disclosed. The coating includes a columnar grained ceramic layer applied to a platinum modified Ni3Al gamma prime phase bond coat having a high purity alumina scale. The preferred composition of the bond coat is 8 to 16 % by weight of aluminum, 8 to 25 % by weight of platinum with the balance, at least 50 % by weight, nickel. A method for making the bond coat is also disclosed.
Inventors:
STRANGMAN THOMAS E
RAYBOULD DEREK
RAYBOULD DEREK
Application Number:
PCT/US2001/040435
Publication Date:
March 21, 2002
Filing Date:
April 03, 2001
Export Citation:
Assignee:
HONEYWELL INT INC (US)
International Classes:
C23C28/00; (IPC1-7): C23C28/00; C23C26/00
Foreign References:
| EP0718419A2 | 1996-06-26 | |||
| EP0532150A1 | 1993-03-17 | |||
| EP0985744A1 | 2000-03-15 | |||
| US3819338A | 1974-06-25 | |||
| EP0733723A1 | 1996-09-25 | |||
| EP1094131A2 | 2001-04-25 |
Other References:
CHEN J H ET AL: "Degradation of the platinum aluminide coating on CMSX4 at 1100 degrees C", SURFACE AND COATINGS TECHNOLOGY, JUNE 1997, ELSEVIER, SWITZERLAND, vol. 92, no. 1-2, June 1997 (1997-06-01), pages 69 - 77, XP001035241, ISSN: 0257-8972
Download PDF: