Title:
ZIRCONIA SINTERED BODY CONTAINING NEEDLE-SHAPED METAL OXIDE
Document Type and Number:
WIPO Patent Application WO/2022/138592
Kind Code:
A1
Abstract:
The present invention provides a zirconia sintered body that has high strength and is machinable. The present invention relates to a zirconia sintered body containing zirconia, a stabilizing agent capable of suppressing phase changes in the zirconia, a sintering aid, and a needle-shaped metal oxide. The sintering aid contains niobium pentoxide, and the content of the niobium pentoxide is preferably 5-15 parts by mass with respect to a total of 100 parts by mass of the zirconia and the stabilizing agent. The stabilizing agent contains yttria, and the content of yttria is preferably 2.5-10 mol% with respect to the total number of moles of zirconia and yttria.
Inventors:
NIWA TAKAHIRO (JP)
Application Number:
PCT/JP2021/047096
Publication Date:
June 30, 2022
Filing Date:
December 20, 2021
Export Citation:
Assignee:
KURARAY NORITAKE DENTAL INC (JP)
International Classes:
C04B35/488; A61C13/083; A61K6/818; A61K6/822; A61K6/824; C01G25/02; C04B35/80
Foreign References:
| JP2012041239A | 2012-03-01 | |||
| JP2018505829A | 2018-03-01 | |||
| JP2015127294A | 2015-07-09 | |||
| JP2015127294A | 2015-07-09 | |||
| JP2017077454A | 2017-04-27 |
Attorney, Agent or Firm:
KAMADA Koichi et al. (JP)
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