Title:
BLACK ZIRCONIA COMPOSITE SINTERED BODY AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2023/234396
Kind Code:
A1
Abstract:
The present invention provides a zirconia composite sintered body that is black and that has excellent machining properties in a state of a sintered body. The present invention pertains to a black zirconia composite sintered body which contains ZrO2, HfO2, a stabilizing agent capable of suppressing phase transition of zirconia, and Nb2O5 and/or Ta2O5, and in which, in a total 100 mol% of ZrO2, HfO2, the stabilizing agent, Nb2O5, and Ta2O5, the total percentage content of ZrO2 and HfO2 is 78-97.5 mol%, the percentage content of the stabilizing agent is 1-12 mol%, the total percentage content of Nb2O5 and Ta2O5 is 1-9 mol%, and an ion or an element derived from a capping agent is contained.
Inventors:
ITO YOSHIHISA (JP)
NIWA TAKAHIRO (JP)
KATO SHINICHIRO (JP)
NIWA TAKAHIRO (JP)
KATO SHINICHIRO (JP)
Application Number:
PCT/JP2023/020507
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
Foreign References:
| JP2015127294A | 2015-07-09 | |||
| JP2001354480A | 2001-12-25 | |||
| JP2018505829A | 2018-03-01 | |||
| CN112500159A | 2021-03-16 | |||
| JP2019508349A | 2019-03-28 |
Attorney, Agent or Firm:
KAMADA Koichi et al. (JP)
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