Preceramic compositions and ceramic products
US4942145A · kind A · utility
19Cited by
2References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 26, 1989 |
| Grant date | Jul 17, 1990 |
| Priority date | — |
| Expiry date | May 26, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B35/571
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Preceramic molding compositions capable of forming low density ceramics having acceptable strength and improved wear resistance are compositions having a particle size not larger than about 105 micrometers and comprising an intimate mixture of (A) about 50-90 parts by weight of powder ingredients comprising about 2-50% by weight of graphite powder and about 98-50% by weight of a second powder selected from silicon carbide, silicon nitride, and mixtures thereof and (B) correspondingly, about 50-10 parts by weight of a preceramic polysilazane binder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.