OXIDE CONTAINING MCRA1Y-TYPE OVERLAY COATINGS
Assignee
UNITED TECHNOLOGIES CORPORATION, HARTFORD, CT. A CORP. OF DE.
Filed
Nov 19, 1987
Granted
Jan 11, 1994
Location
VERNON CT US
Abstract
The oxidation resistance of MCrAlY-type overlay coatings is improved by incorporating small discrete oxide particles into the coating. The particles are preferably yttrium oxide, and the coating is applied by simultaneously plasma spraying MCrAlY-type powder particles and oxide particles onto a substrate in a nonoxidizing atmosphere. Improvements in resistance to rumpling has also been observed in coatings applied according to this invention.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Oct 16, 1989
Rescinded
Mar 10, 1993
Duration
3 years, 4 months
Inventor
- 1WALTER E. OLSON
Record Details
- Patent number
- US 5277936
- Application
- 07122868
- Aerospace match
- Yes
- Dataset source
- 35 USC §181 SO records
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