Method of making silicon carbide-silicon composite having improved oxidation resistance
US6347446B1 · kind B1 · utility
27Cited by
19References
13Claims
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Key dates
| Filing date | Jun 3, 1999 |
| Grant date | Feb 19, 2002 |
| Priority date | — |
| Expiry date | Jun 3, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/265
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A Silicon carbide-silicon matrix composite having improved oxidation resistance at high temperatures in dry or water-containing environments is provided. A method is given for sealing matrix cracks in situ in melt infiltrated silicon carbide-silicon matrix composites. The composite cracks are sealed by the addition of various additives, such as boron compounds, into the melt infiltrated silicon carbide-silicon matrix.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.