Title:
SiC CERAMIC USING COATED SiC NANOPARTICLES AND PRODUCTION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2019/049784
Kind Code:
A1
Abstract:
Provided are a SiC ceramic which has superior compactness and superior thermal and mechanical characteristics in room-temperature and high-temperature environments even when fired at a relatively low temperature, and a production method for the SiC ceramic. According to the present invention, SiC fine particles having an average particle size of 300 nm or less are prepared, and, on each of the surfaces thereof, a coating layer of about 1-10 nm is formed by a gas phase method or a liquid phase method. The coating layer may contain Al. A powder comprising the thus-prepared coated SiC fine particles is sintered at a temperature of 1600-1900ºC. This allows production of a SiC sintered body having superior compactness and superior thermal and mechanical characteristics in room-temperature and high-temperature environments.
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Inventors:
SHIMODA KAZUYA (JP)
MURAKAMI HIDEYUKI (JP)
HINOKI TATSUYA (JP)
MURAKAMI HIDEYUKI (JP)
HINOKI TATSUYA (JP)
Application Number:
PCT/JP2018/032367
Publication Date:
March 14, 2019
Filing Date:
August 31, 2018
Export Citation:
Assignee:
NAT INST MATERIALS SCIENCE (JP)
UNIV KYOTO (JP)
UNIV KYOTO (JP)
International Classes:
C04B35/577; C04B35/628; C04B35/645
Foreign References:
| JPH05246763A | 1993-09-24 | |||
| JPS6340766A | 1988-02-22 | |||
| JPS5891067A | 1983-05-30 | |||
| JPS59190268A | 1984-10-29 | |||
| JPS5891071A | 1983-05-30 |
Attorney, Agent or Firm:
AIKAWA, Toshihiko (JP)
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