COMPOSITION FOR SIC PACK CEMENTATION COATING OF CARBONACEOUS SUBSTRATES
Assignee
HITCO
Filed
Jun 19, 1989
Granted
May 11, 1993
Location
MARINA DEL RAY CA US
Abstract
This invention relates to an improved pack mixture composition useful for the formation of a SiC pack cementation coating for protecting a carbonaceous substrate from degradation at temperatures above about 800° F. comprising: Si from about 15% to about 50% by weight of the total composition; B up to about 25% by weight of the total composition when present; SiO2 from about 0.01% to about 3% by weight of the total composition; and SiC from about 40% to about 85% by weight of the total composition and method thereof. The invention further relates to a cork release agent composition for providing the clean release of spent pack composition from a carbonaceous substrate.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Jan 4, 1991
Rescinded
Mar 22, 1991
Duration
2 months
Inventor
- 1IRA C. SCHWARTZ
Record Details
- Patent number
- US 5209950
- Application
- 07368501
- Aerospace match
- No
- Dataset source
- 35 USC §181 SO records