Zirconia sintered body and use thereof
US9919971B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 25, 2014 |
| Grant date | Mar 20, 2018 |
| Priority date | — |
| Expiry date | Dec 25, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2237/348
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
To provide a zirconia sintered body which has at least two different color tones such as white and black, and which has no color bleeding or no gap between sintered bodies. A zirconia sintered body comprising a first zirconia sintered body and a second zirconia sintered body, characterized in that the first zirconia sintered body is a zirconia sintered body containing aluminum oxide; the second zirconia sintered body is a zirconia sintered body containing a spinel oxide; a bonding plane is formed between the first zirconia sintered body and the second zirconia sintered body; and it has no gap or no color bleeding at the bonding plane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.