Method of manufacturing a dense silicon carbide ceramic
US4318876A · kind A · utility
5Cited by
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14Claims
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Inventor
Key dates
| Filing date | Oct 3, 1980 |
| Grant date | Mar 9, 1982 |
| Priority date | — |
| Expiry date | Oct 3, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B35/565
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method of manufacturing a dense silicon carbide ceramic includes heat treating an alpha silicon powder in a vacuum to between 1200.degree. and 1400.degree. C., adding a boron powder either before or after heat treating, then, adding a substance containing carbon, milling the mixture, compressing the milled mixture into a desired shape, sintering the formed shape at 2100.degree. C. in an argon atmosphere. The method has particular application to manufacturing parts for gas turbines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.