Coarse reaction bonded silicon nitride
US5510304A · kind A · utility
2Cited by
7References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 14, 1994 |
| Grant date | Apr 23, 1996 |
| Priority date | — |
| Expiry date | Sep 14, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K3/1409
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A ceramic comprising: a) between 20 w/o and 90 w/o unnecked composite grains comprising: i) between 5 w/o and 100 w/o silicon nitride, and ii)between 0 w/o and 95 w/o free silicon, said composite grains having lengths of at least 50 microns and widths of at least 10 microns, and b) between 10 w/o and 80 w/o matrix grains having lengths of less than 20 microns.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.