Zirconia powder, sintered zirconia object, and method for producing sintered zirconia object
AssigneeDaiichi Kigenso Kagaku Kogyo Co., Ltd.
InventorsSatoshi TAKEDA, Keita KANENISHI
Life of this patent
Estimating the term…
Abstract
Disclosed herein is a zirconia powder containing stabilized zirconia containing zirconia and a stabilizer, wherein the stabilizer contains a first stabilizer and a second stabilizer, the first stabilizer is CaO, the second stabilizer is at least one selected from the group consisting of Y2O3, Yb2O3, Er2O3, CeO2, Nd2O3, La2O3, and Tb2O3, a total amount of the stabilizer in the stabilized zirconia is 2.5 mol % or more and 6.5 mol % or less in terms of oxide, and a ratio of [amount (mol %) of CaO]/[total amount (mol %) of stabilizer] is 50% or more and 98% or less.
Claims18
A zirconia powder comprising
- stabilized zirconia containing zirconia and a stabilizer, wherein
- the stabilizer contains a first stabilizer and a second stabilizer,
- the first stabilizer is CaO,
- the second stabilizer is at least one selected from the group consisting of Y2O3, Yb2O3, Er2O3, CeO2, Nd2O3, La2O3, and Tb2O3,
- a total amount of the stabilizer in the stabilized zirconia is 2.5 mol % or more and 6.5 mol % or less in terms of oxide, and
- a ratio of [amount (mol %) of CaO]/[total amount (mol %) of stabilizer] is 50% or more and 98% or less.
A zirconia sintered body comprising
- stabilized zirconia containing zirconia and a stabilizer, wherein
- the stabilizer contains a first stabilizer and a second stabilizer,
- the first stabilizer is CaO,
- the second stabilizer is at least one selected from the group consisting of Y2O3, Yb2O3, Er2O3, CeO2, Nd2O3, La2O3, and Tb2O3,
- a total amount of the stabilizer in the stabilized zirconia is 2.5 mol % or more and 6.5 mol % or less in terms of oxide, and
- a ratio of [amount (mol %) of CaO]/[total amount (mol %) of stabilizer] is 50% or more and 98% or less.
Dependencies are inferred from the claim text.