Silicon-filled aluminum polymer precursors to SiC-AlN ceramics
US5272239A · kind A · utility
8Cited by
9References
34Claims
0Family size
Inventor
Key dates
| Filing date | Mar 24, 1992 |
| Grant date | Dec 21, 1993 |
| Priority date | — |
| Expiry date | Mar 24, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B35/573
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Process for producing ceramic compositions by dispersing elemental silicon powder in a ceramic precursor polymer containing Al, N, and C, shaping the resultant composition, and heating the shaped product to cause a reaction between the elemental silicon and the polymer to result in an intermediate composition and further heating the intermediate composition to a temperature sufficient to consolidate the char to a dense SiC--AlN solid-solution or microscopic ceramic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.