Densified micrograin refractory metal or solid solution solution (mixed metal) carbide ceramics
US5563107A · kind A · utility
34Cited by
6References
14Claims
0Family size
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Key dates
| Filing date | Sep 22, 1995 |
| Grant date | Oct 8, 1996 |
| Priority date | — |
| Expiry date | Sep 22, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B35/645
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Densified refractory carbide and solid solution carbide materials that have an average grain size of less than 1.1 .mu.m, a density of at least 98% of theoretical may be prepared by any conventional densification procedure. Pressure densified tungsten carbide ceramic materials exhibit a simultaneous increase in Vickers hardness and a toughness (K.sub.IC) with decreasing average grain size.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.