Alumina sintered products and process for their production
US4331627A · kind A · utility
16Cited by
7References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 27, 1979 |
| Grant date | May 25, 1982 |
| Priority date | — |
| Expiry date | Nov 27, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B35/111
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process for producing an alumina sintered product is disclosed wherein the starting alumina mixture contains about 0.01 to 0.55% by weight of MgO and 0.5 to 5.5% by weight of Y.sub.2 O.sub.3. The process yields a sintered product having a porosity on the order of less than 0.1% by volume and an average crystal grain size of about 2 microns or less and is particularly suitable for use in high speed microfinish cutting.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.