Aluminum oxide based sintered body
US5858899A · kind A · utility
1Cited by
5References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 28, 1997 |
| Grant date | Jan 12, 1999 |
| Priority date | — |
| Expiry date | Jul 28, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B35/117
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An aluminum oxide based sintered body and a method for manufacturing the same are disclosed. The aluminum oxide based sintered body is composed of silicon compounds in particulate form of from about 5 to about 40 mole %, calculated as a carbide, which is present along grain boundaries as a silicon-containing glass, at least one metal or metal compound of from 0.5 to about 20 mole %, calculated as metals, selected from Ti, Nb, Ta, Cr and Mo, and the remainder of Al.sub.2 O.sub.3, and the molar ratio of the metals with respect to the silicon compounds, calculated as a carbide, is about 4 or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.