Title:
SINTERED BODY AND ALUMINA-DOPED PARTIALLY STABILIZED ZIRCONIA
Document Type and Number:
WIPO Patent Application WO/2019/244398
Kind Code:
A1
Abstract:
A sintered body containing a first material that is partially stabilized ZrO2 in which cubic boron nitride and Al2O3 are dispersed on a crystal grain boundary and/or in a crystal grain, the sintered body containing the cubic boron nitride in an amount of 20 to 80 vol% inclusive, wherein nitrogen is contained in an amount of 0.001% to 1% by mass inclusive in the first material when the first material is measured by secondary ion mass spectrometry.
Inventors:
HAMA HISAYA (JP)
OKAMURA KATSUMI (JP)
AMEMIYA MAYU (JP)
KUKINO SATORU (JP)
OKAMURA KATSUMI (JP)
AMEMIYA MAYU (JP)
KUKINO SATORU (JP)
Application Number:
PCT/JP2019/006759
Publication Date:
December 26, 2019
Filing Date:
February 22, 2019
Export Citation:
Assignee:
SUMITOMO ELECTRIC INDUSTRIES (JP)
SUMITOMO ELECTRIC HARDMETAL CORP (JP)
SUMITOMO ELECTRIC HARDMETAL CORP (JP)
International Classes:
C04B35/488; B23B27/14; C01F7/02; C01G25/02; C04B35/5831
Domestic Patent References:
| WO2016171155A1 | 2016-10-27 | |||
| WO2018074017A1 | 2018-04-26 | |||
| WO2016171155A1 | 2016-10-27 |
Foreign References:
| EP0371211A2 | 1990-06-06 | |||
| JPS5945969A | 1984-03-15 | |||
| JP2018115483A | 2018-07-26 |
Other References:
KATO, AKIO: "Preparation of Fine Particles by Solution Technique", RESOURCES PROCESSING, vol. 37, no. 2, 1990, pages 70 - 74, XP055761255
YANO, TOYOHIKO ET AL.: "Effects of Spray Pyrolysis Conditions on Character of Yttria Partially Stabilized Zirconia Powders", YAGIO-KYOKAI-SHI, vol. 95, no. 1, 1987, pages 121 - 126, XP009524692
See also references of EP 3808714A4
YANO, TOYOHIKO ET AL.: "Effects of Spray Pyrolysis Conditions on Character of Yttria Partially Stabilized Zirconia Powders", YAGIO-KYOKAI-SHI, vol. 95, no. 1, 1987, pages 121 - 126, XP009524692
See also references of EP 3808714A4
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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