Title:
ZIRCONIA COMPOSITE SINTERED BODY AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2023/234399
Kind Code:
A1
Abstract:
The present invention provides a zirconia composite sintered body that has strength and translucency suitable for dental use and also has exceptional machinability. The present invention relates to a zirconia composite sintered body that contains ZrO2, HfO2, a stabilizer capable of suppressing phase transition of zirconia, and Nb2O5 and/or Ta2O5, the zirconia composite sintered body being such that, in a total of 100 mol% of the ZrO2, the HfO2, the stabilizer, the Nb2O5, and the Ta2O5, the total content value for the ZrO2 and the HfO2 is 78-97.5 mol%, the content value for the stabilizer is 1-12 mol%, and the total content value for Nb2O5 and Ta2O5 is 1-9 mol%, and the zirconia composite sintered body furthermore containing a group I element and TiO2.
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Inventors:
NIWA TAKAHIRO (JP)
NAKANO KIRIHIRO (JP)
KATO SHINICHIRO (JP)
NAKANO KIRIHIRO (JP)
KATO SHINICHIRO (JP)
Application Number:
PCT/JP2023/020515
Publication Date:
December 07, 2023
Filing Date:
June 01, 2023
Export Citation:
Assignee:
KURARAY NORITAKE DENTAL INC (JP)
International Classes:
C04B35/488; A61C5/70; A61C13/083; C04B35/645
Domestic Patent References:
| WO2021132644A1 | 2021-07-01 | |||
| WO2022138592A1 | 2022-06-30 |
Foreign References:
| JP2015127294A | 2015-07-09 | |||
| JP2018505829A | 2018-03-01 |
Attorney, Agent or Firm:
KAMADA Koichi et al. (JP)
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