Body made of a ceramic material
US10752553B2 · kind B2 · utility
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27Claims
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Key dates
| Filing date | Dec 23, 2013 |
| Grant date | Aug 25, 2020 |
| Priority date | — |
| Expiry date | Jul 15, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24355
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A body made of a ceramic material based on zirconia, the body having a surface region extending from the surface of the body to a predetermined depth and a core region integrally formed with the surface region. The ceramic material in the surface region includes a crystalline phase A formed by zirconia in tetragonal phase. The ceramic material in the surface region further includes a crystalline phase B, the crystal structure of which including apart from zirconium and oxygen at least one further component X in a periodic arrangement, the crystalline phase B having a lower theoretical density than crystalline phase A.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.