Aluminum nitride sintered body and process for producing the same
US5589429A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 27, 1994 |
| Grant date | Dec 31, 1996 |
| Priority date | — |
| Expiry date | Dec 27, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B35/581
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An aluminum nitride sintered body comprising aluminum nitride as a main component, a titanium compound, and an yttrium compound, wherein when the content of titanium and the content of yttrium both in terms of percentage by weight based on the aluminum nitride sintered body are plotted on an x-y coordinate system, with the titanium content as the x axis and the yttrium content as the y axis, the titanium content and the yttrium content each is within a region surrounded by the lines connecting points A and B, B and C, C and D, D and E, and E and A, inclusive of the lines the points A, B, C, D and E being: A (0.2, 2.0) B (0.2, 6.5) C (1.0, 10.25) D (2.2, 10.25) E (2.2, 5.0).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.