Sintered body of aluminum nitride and method for producing the same
US5036026A · kind A · utility
8Cited by
15References
5Claims
0Family size
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Key dates
| Filing date | Sep 25, 1990 |
| Grant date | Jul 30, 1991 |
| Priority date | — |
| Expiry date | Sep 25, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B35/581
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A sintered body of aluminum nitride having a density of not smaller than 3.1 g/cm.sup.3, a coefficient of thermal conductivity of not smaller than 100 W/mk and preferably an average particle size of not larger than 5 .mu.m, which comprises aluminum nitride as a main component, 0.01 to 10.0% by weight of at least one oxide selected from oxides of the IIa and IIIa elements of the Periodic Table, 2.0% by weight or less of oxygen which is not contained in the oxide of the IIa and IIIa element and 1.0% by weight or less of at least one impurity metal which is not the IIa or IIIa element which has good thermal conductivity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.