Title:
焼結体
Document Type and Number:
Japanese Patent JP7351071
Kind Code:
B2
Abstract:
A sintered body contains perovskite YAlO3 (YAP) as a main phase exhibited in X-ray diffractometry, and has a Vickers hardness of 11 GPa or more. In the case where the sintered body contains a composition other than YAlO3, the composition preferably substantially consists of Y3Al5O12 and Y4Al2O9. The sintered body preferably has an absolute density of 5.1 g/cm3 or more. The sintered body preferably has an open porosity of 1% or less, and also preferably has an average crystal grain size of 10 μm or less.
Inventors:
Sage Matsukura
Yoshiaki Tazaki
Dan Minami
Yoshiaki Tazaki
Dan Minami
Application Number:
JP2022536919A
Publication Date:
September 27, 2023
Filing Date:
December 08, 2021
Export Citation:
Assignee:
Nippon Yttrium Co., Ltd.
International Classes:
C01F17/34; C04B35/44; C04B35/505; H01L21/3065
Domestic Patent References:
| JP2013224226A | ||||
| JP11157916A | ||||
| JP2000044235A | ||||
| JP8268751A |
Foreign References:
| WO2020217552A1 |
Other References:
浜野健也編,ファインセラミックスハンドブック,1984年02月10日,P.266
SUDHANSHU RANJAN,SINTERING AND MECHANICAL PROPERTIES OF ALUMINA-YTTRIUM ALUMINATE COMPOSITES,DEPARTMENT OF CERAMIC ENGINEERING NATIONAL INSTITUTE OF TECHNOLOGY Rourkela,A THESIS SUBMITTED IN P,2015年05月,P1-35,http://ethsis.nitrkl.ac.in/7062/
SMOLEN Jら,Influence of high-energy milling parameters on the synthesis of single phase yttrium aluminium perovskite(YAP),materialy ceramiczne ,2020年,vol.72 no.4,p.235-246
SUDHANSHU RANJAN,SINTERING AND MECHANICAL PROPERTIES OF ALUMINA-YTTRIUM ALUMINATE COMPOSITES,DEPARTMENT OF CERAMIC ENGINEERING NATIONAL INSTITUTE OF TECHNOLOGY Rourkela,A THESIS SUBMITTED IN P,2015年05月,P1-35,http://ethsis.nitrkl.ac.in/7062/
SMOLEN Jら,Influence of high-energy milling parameters on the synthesis of single phase yttrium aluminium perovskite(YAP),materialy ceramiczne ,2020年,vol.72 no.4,p.235-246
Attorney, Agent or Firm:
Patent Attorney Showa International Patent Office