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Title:
ZIRCONIA SINTERED BODY CONTAINING FLUORESCENT AGENT
Document Type and Number:
WIPO Patent Application WO/2019/026809
Kind Code:
A1
Abstract:
The present invention provides: a zirconia sintered body containing a fluorescent agent, and exhibiting excellent light transmittance and strength; a zirconia molded body from which the zirconia sintered body can be obtained; and a zirconia calcined body. The present invention pertains to: a zirconia sintered body containing a fluorescent agent, the zirconia sintered body containing 4.5-9.0 mol% of yttria, and having a crystal grain size of 180 nm or less, and a three-point flexural strength of 500 MPa or more; a zirconia molded body containing a fluorescent agent, the zirconia molded body containing 4.5-9.0 mol% of yttria, having a three-point flexural strength of 500 MPa or more after sintering at 1100°C for 2 hours under atmospheric pressure, and having a crystal grain size of 180 nm or less after sintering at 1100°C for 2 hours under atmospheric pressure; and a zirconia calcined body containing a fluorescent agent, the zirconia calcined body containing 4.5-9.0 mol% of yttria, having a three-point flexural strength of 500 MPa or more after sintering at 1100°C for 2 hours under atmospheric pressure, and having a crystal grain size of 180 nm or less after sintering at 1100°C for 2 hours under atmospheric pressure.

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Inventors:
KUDO YASUTAKA (JP)
KATO MAKIKO (JP)
OKADA KOICHI (JP)
Application Number:
PCT/JP2018/028323
Publication Date:
February 07, 2019
Filing Date:
July 27, 2018
Export Citation:
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Assignee:
KURARAY NORITAKE DENTAL INC (JP)
International Classes:
C04B35/488; A61C13/083; A61C13/087
Domestic Patent References:
WO2016124758A12016-08-11
WO2010110156A12010-09-30
WO2008013099A12008-01-31
WO2013094669A12013-06-27
WO2015098765A12015-07-02
WO2012042911A12012-04-05
WO2014126034A12014-08-21
Foreign References:
JP2016117618A2016-06-30
JP2016540772A2016-12-28
JP2000159621A2000-06-13
Other References:
See also references of EP 3663272A4
Attorney, Agent or Firm:
KAMADA Koichi et al. (JP)
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