Black zirconia sintered body and preparation method therefor and use thereof
US10737983B2 · kind B2 · utility
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9Claims
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Key dates
| Filing date | Aug 3, 2017 |
| Grant date | Aug 11, 2020 |
| Priority date | — |
| Expiry date | Aug 3, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2235/9661
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A black zirconia sintered body is obtained by processing and forming a powder for the black zirconia sintered body, and then sintering the same at a high temperature and normal pressure in the atmosphere. The powder for the black zirconia sintered body is prepared by a hydrothermal synthesis method using a soluble zirconium salt, a soluble yttrium salt and a color former as raw materials, wherein the molar ratio of the soluble zirconium salt, the soluble yttrium salt and the color former is 90-95:1-5:1-9. The black zirconia sintered body can be used in ceramic processes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.