Title:
SILICON NITRIDE SINTERED BODY, WEAR-RESISTANT MEMBER, AND METHOD FOR MANUFACTURING SILICON NITRIDE SINTERED BODY
Document Type and Number:
WIPO Patent Application WO/2022/210533
Kind Code:
A1
Abstract:
A silicon nitride sintered body according to an embodiment of the present invention is provided with silicon nitride crystal particles and a grain boundary phase, wherein when a 20 μm × 20 μm region in a central cross-section of the silicon nitride sintered body is subjected to Raman spectroscopic analysis, two or more peaks are detected in the range of 780 cm-1 to 810 cm-1 and 1340 cm-1 to 1370 cm-1, and four to six peaks are detected in the ranges of 170 cm-1 to 190 cm-1, 607 cm-1 to 627 cm-1, 720 cm-1 to 740 cm-1, and 924 cm-1 to 944 cm-1.
Inventors:
OOKUBO KAZUYA (JP)
Application Number:
PCT/JP2022/015006
Publication Date:
October 06, 2022
Filing Date:
March 28, 2022
Export Citation:
Assignee:
TOSHIBA KK (JP)
TOSHIBA MATERIALS CO LTD (JP)
TOSHIBA MATERIALS CO LTD (JP)
International Classes:
C04B35/596; C04B35/645; F16C19/06; F16C33/32; G01N3/32; G01N21/65
Domestic Patent References:
| WO2020121752A1 | 2020-06-18 | |||
| WO2018194052A1 | 2018-10-25 | |||
| WO2014104112A1 | 2014-07-03 |
Foreign References:
| JP2017075073A | 2017-04-20 | |||
| JP5002155B2 | 2012-08-15 | |||
| JP2003065337A | 2003-03-05 |
Attorney, Agent or Firm:
HYUGAJI, Masahiko et al. (JP)
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