Si.sub.3 N.sub.4 Hot-pressed with MgO
US4099979A · kind A · utility
11Cited by
4References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 29, 1976 |
| Grant date | Jul 11, 1978 |
| Priority date | — |
| Expiry date | Dec 29, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B35/593
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
This invention relates generally to ceramic materials formed from powder, and more particularly to hot-pressed structural materials comprising silicon nitride (Si.sub.3 N.sub.4) wherein the oxygen content is controlled by maintaining the molar ratio of MgO and SiO.sub.2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.