Sintered silicon nitride products and processes for fabrication thereof
US4511402A · kind A · utility
18Cited by
2References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 14, 1984 |
| Grant date | Apr 16, 1985 |
| Priority date | — |
| Expiry date | Aug 14, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B35/593
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A sintered silicon nitride products and processes for the fabrication thereof are described, wherein the product comprises from 60 to 98.9% by weight of silicon nitride, from 0.1 to 15% by weight of one or more chromium components selected from metal chromium, chromium oxide, and chromium nitride, and from 1 to 25% by weight of one or more oxides selected from oxides of rare earth elements, scandium oxide, yttrium oxide, aluminum oxide, zirconium oxide and silicon dioxide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.