Thermochemically treated oligomeric and/or polymeric derived silicon carbide fibers
US5139871A · kind A · utility
8Cited by
8References
10Claims
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Key dates
| Filing date | Jan 13, 1988 |
| Grant date | Aug 18, 1992 |
| Priority date | — |
| Expiry date | Jan 13, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/30
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Silicon carbide fibers which are derived from oligomeric and/or polymeric precursors are modified and strengthened in annealing the silicon carbide fiber at temperatures in excess of 800.degree. C. under a nitrogen atmosphere in the presence of carbon particles. The modified fibers can be used to make ceramic, metal, and plastsic composites.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.