Method for forming fibrous silicon carbide insulating material
US4481179A · kind A · utility
14Cited by
5References
3Claims
0Family size
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Inventor
Key dates
| Filing date | Oct 12, 1983 |
| Grant date | Nov 6, 1984 |
| Priority date | — |
| Expiry date | Oct 12, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B35/80
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method whereby silicon carbide-bonded SiC fiber composites are prepared from carbon-bonded C fiber composites is disclosed. Carbon-bonded C fiber composite material is treated with gaseous silicon monoxide generated from the reaction of a mixture of colloidal silica and carbon black at an elevated temperature in an argon atmosphere. The carbon in the carbon bond and fiber is thus chemically converted to SiC resulting in a silicon carbide-bonded SiC fiber composite that can be used for fabricating dense, high-strength high-toughness SiC composites or as thermal insulating materials in oxidizing environments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.