Body made of a ceramic material
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United States of America Patent
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Aug 25, 2020
Grant Date -
Nov 5, 2015
app pub date -
Dec 23, 2013
filing date -
Dec 24, 2012
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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.
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