Interface coating for ceramic fibers
US5593728A · kind A · utility
13Cited by
7References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 1, 1994 |
| Grant date | Jan 14, 1997 |
| Priority date | — |
| Expiry date | Nov 1, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2235/9684
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An improved interface coating for a fibrous material composed of a silicon-containing boron nitride having the general composition BSi.sub.x N.sub.1+1.33x, and containing from 2 wt % to 42 wt % of silicon, with substantially no free silicon present. The coating is formed by CVD using reactant vapors of ammonia and a gaseous source of both boron and silicon which flow into the furnace chamber at a controlled flow ratio to nitride the deposit to form the complex coating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.