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Title:
SEED CRYSTAL-INDUCED MICROWAVE SYNTHESIZED SIC CRYSTAL AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2022/267103
Kind Code:
A1
Abstract:
A seed crystal-induced microwave synthesized SiC crystal and a preparation method therefor, relating to the technical field of inorganic nonmetallic materials. The method comprises the following steps: after uniformly mixing silicon powder, nano-carbon black, and a SiC seed crystal to obtain mixed powder, then pressing the mixed powder into a blank, then performing microwave heating, and maintaining the temperature at 800-1,100ºC for 15-30 minutes to synthesize a SiC crystal, i.e., the seed crystal-induced microwave synthesized SiC crystal. Compared with the current seed crystal induction technology in industry, the method greatly reduces the difficulty and process conditions of SiC crystal synthesis, and has good application prospects.

Inventors:
ZHANG RUI (CN)
GUAN LI (CN)
WANG HAILONG (CN)
LI ZHE (CN)
ZHANG XINYUE (CN)
GAO QIANCHENG (CN)
ZHAO BIAO (CN)
GUO SHAOJIE (CN)
LI MINGLIANG (CN)
FAN BINGBING (CN)
Application Number:
PCT/CN2021/105386
Publication Date:
December 29, 2022
Filing Date:
July 09, 2021
Export Citation:
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Assignee:
UNIV ZHENGZHOU AERONAUTICS (CN)
International Classes:
C04B35/565; C04B35/65
Foreign References:
CN105254322A2016-01-20
CN110592673A2019-12-20
JPH06333830A1994-12-02
Other References:
WEI SHENGNAN, GUAN LI, SONG BOZHEN, FAN BINGBING, ZHAO BIAO, ZHANG RUI: "Seeds-induced synthesis of SiC by microwave heating", CERAMICS INTERNATIONAL, ELSEVIER, AMSTERDAM., NL, vol. 45, no. 8, 1 June 2019 (2019-06-01), NL , pages 9771 - 9775, XP093016998, ISSN: 0272-8842, DOI: 10.1016/j.ceramint.2019.02.012
YUAN ZHEN-XIA, LU YOU-JUN; WU LAN-ER; HUAI XIAO-CHEN; GAO JIE: "Synthesis SiC powder from Silicon and Carbon Black via Microwave Heating Route", ADVANCED CERAMICS, vol. 37, no. 3, 1 June 2016 (2016-06-01), pages 190 - 197, XP093016999, ISSN: 1005-1198, DOI: 10.16253/j.cnki.37-1226/tq.2016.04.002
Attorney, Agent or Firm:
XI'AN MINGZE INTELLECTUAL PROPERTY AGENCY OFFICE (GENERAL PARTNERSHIP) (CN)
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