High surface area ceramics prepared from organosilane gels
US4818732A · kind A · utility
33Cited by
17References
8Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 19, 1987 |
| Grant date | Apr 4, 1989 |
| Priority date | — |
| Expiry date | Mar 19, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B38/0045
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
High surface area open microporous, partially crystalline, partially amorphous, solid ceramic materials containing silicon carbide with or without silica with or without carbon may be prepared by controlled pyrolysis of (RSiO.sub.1.5).sub.n gels in an inert atmosphere. The silica and carbon content, surface area, and pore size and distribution may be altered by optional subsequent processing steps to selectively remove carbon and/or silica.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.