PRECERAMIC COMPOSITION AND CERAMIC PRODUCT
Assignee
ETHYL CORPORATION
Filed
Oct 15, 1990
Granted
Nov 2, 1993
Location
NEW ROADS LA US
Abstract
Preceramic compositions which have particular utility in providing protective ceramic coatings on normally oxidizable materials, such as carbon/carbon and other carbon-containing composites and other materials, are obtained by dispersing solid particles comprising aluminum nitride particles in an organic solvent solution of a polysilazane. Ceramic coatings derived from the dispersions may serve as intermediate strata in multilayer ceramic coatings over substrates, such as carbon/ carbon composites, to provide even greater protection to the substrates, even when exposed to humidity.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Mar 27, 1991
Rescinded
Jun 16, 1992
Duration
1 year, 2 months
Inventor
- 1CONRAD J. LANGLOIS
Record Details
- Patent number
- US 5258224
- Application
- 07597063
- Aerospace match
- No
- Dataset source
- 35 USC §181 SO records
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