Red zirconia sintered body and method for manufacturing the same
US10550040B2 · kind B2 · utility
2Cited by
2References
8Claims
0Family size
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Key dates
| Filing date | Sep 1, 2016 |
| Grant date | Feb 4, 2020 |
| Priority date | — |
| Expiry date | Sep 2, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2237/348
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Provided is a zirconia sintered body that uses coloring of cerium oxide, the zirconia sintered body exhibiting a bright red color. The zirconia sintered body includes an oxide of cerium is an amount of 0.5% by mole or more and less than 4% by mole in terms of CeO2, yttria in an amount of 2% by mole or more and less than 6% by mole, an oxide of aluminum in an amount of 0.1% by weight or more and less than 2% by weight, and the balance being zirconia. The oxide of cerium contains trivalent cerium, and the zirconia has a crystal structure including a tetragonal phase.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.