Zirconia sintered body and production method thereof
US11479511B2 · kind B2 · utility
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9Claims
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Key dates
| Filing date | Sep 30, 2020 |
| Grant date | Oct 25, 2022 |
| Priority date | — |
| Expiry date | Sep 30, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2235/9653
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A zirconia sintered body is provided and includes yttria and zirconia, containing yttria by a content ranging from 4.5 mol % or more to 6.5 mol % or less and zirconia as the remainder, the total light transmittance of a 1-mm thick sample measured in compliance with JIS K 7361-1 being 46.5% or higher, the three-point bending strength being 700 MPa or higher, and a ratio of an integrated value for the total light transmittance to an integrated value for the parallel light transmittance of a 1-mm thick sample measured at the measurement wavelength ranging from 400 to 700 nm being 1.3% or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.