Aluminum nitride sintered body and preparation thereof
US4883780A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 11, 1988 |
| Grant date | Nov 28, 1989 |
| Priority date | — |
| Expiry date | Feb 11, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B35/581
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
There are disclosed an aluminum sintered body comprising PA0 (a) aluminum nitride, PA0 (b) at least one compound selected from the group consisting of an aluminum compound of a rare earth metal, an aluminum compound of an alkaline earth metal, and an aluminum compound of a rare earth metal and an alkaline earth metal, and PA0 (c) at least one element selected from the transition elements consisting of Groups IVa, Va, VIa, VIIa and VIII of the periodic table, and/or at least one compound containing said element, and a process for preparing the same comprising mixing aluminum nitride with PA1 (i) at least one of compound selected from the group consisting of a rare earth metal and/or an alkaline earth metal; and PA1 (ii) at least one of element selected from the group consisting of a transition element of Groups IVa, Va, VIa, VIIa and VIII of the periodic table, and/or at least one of a compound containing said element; and then molding and sintering the mixture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.