THERMAL BARRIER COATING SYSTEM HAVING NO BOND COAT
Assignee
General Electric
Filed as: GENERAL ELECTRIC COMPANY
Filed
Oct 13, 1992
Granted
Jul 23, 1996
Location
MILFORD OH US
Abstract
A coated article is prepared by melting and casting an article substrate formed of a nickel-base superalloy. The article substrate is heated in a hydrogen-containing atmosphere at a temperature of at least 2000° F. for a period sufficient to desulfurize the substrate to a sulfur content of less than about 1 part per million. Optionally, an aluminum-oxide environmental coating is provided overlying the substrate. A ceramic thermal barrier coating is applied overlying the substrate. Significantly, there being no bond coat applied to the substrate prior to the application of the thermal barrier coating.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Apr 6, 1993
Rescinded
Sep 29, 1994
Duration
1 year, 5 months
Inventor
- 1JON C. SCHAEFFER
Record Details
- Patent number
- US 5538796
- Application
- 07960494
- Aerospace match
- No
- Dataset source
- 35 USC §181 SO records
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