PROTECTION OF GAMMA TITANIUM ALUMINIDES WITH ALUMINOSILICATE COATINGS
Assignee
ROCKWELL INTERNATIONAL CORP.
Filed
Jul 26, 1990
Granted
Jun 2, 1992
Location
El Segundo CA (Aerospace Corp/TRW)
Abstract
A method and composition for protecting a gamma titanium aluminide alloy specimen subject to high temperature oxidation is disclosed. An alumino silicate glass coating is applied on the surface of the gamma titanium aluminide specimen. The coated specimen is heated to a temperature in a range of 2150°-2250° F. for a sufficient time period to form a silicide interfacial layer between the alloy and the glass coating. The glass coating is preferably a composition including SiO2 in a weight percentage of 60 to 65 Al2 O3 in a weight percent of 16 to 20. The glass coating results in minimal oxidation.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Aug 22, 1991
Rescinded
Feb 4, 1992
Duration
5 months
Inventor
- 1HODA SHALABY
Sensitive facility: El Segundo CA (Aerospace Corp/TRW)
Record Details
- Patent number
- US 5118581
- Application
- 07558945
- Aerospace match
- No
- Dataset source
- 35 USC §181 SO records