Sintered alumina product
US4582813A · kind A · utility
9Cited by
5References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 14, 1984 |
| Grant date | Apr 15, 1986 |
| Priority date | — |
| Expiry date | Feb 14, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B35/111
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Sintered alumina product comprising 90 to 98 wt % of alumina as the main component, and which further contains as auxiliary components not more than 1 wt % of BaO and 1 to 10 wt % of a composite oxide having the composition included within the hexagon ABCDEF (except for the line AF) in an SiO.sub.2 -CaO-MgO phase diagram, the respective apexes having the following definitions: ______________________________________ SiO.sub.2 CaO MgO ______________________________________ A 60 40 0 B 60 25 15 C 45 25 30 D 40 30 30 E 40 55 5 F 45 55 0. ______________________________________
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.