Aluminum oxide-based sintered object and process for producing the same
US5286684A · kind A · utility
6Cited by
4References
8Claims
0Family size
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Key dates
| Filing date | Feb 10, 1993 |
| Grant date | Feb 15, 1994 |
| Priority date | — |
| Expiry date | Feb 10, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B35/6455
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An aluminum oxide-based sintered object having excellent abrasion resistance includes .alpha.-aluminum oxide, a silicon compound and a tungsten compound, wherein the silicon compound and the tungsten compound are present in amounts based on starting amounts of SiC and W metal of from 5 to 40 mole % and from 0.5 to 25 mole %, respectively, based on the sintered object overall, with a W/SiC molar ratio of 4 or less, and in which particles of at least one of tungsten carbide and tungsten silicide having an average particle diameter of 0.5 .mu.m or less are dispersed as a crystalline phase.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.