Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Effect of the C/Si Molar Ratio on the Characteristics of β-SiC Powders Synthesized from TEOS and Phenol Resin

C/Si 몰 비가 TEOS와 페놀수지를 출발원료 사용하여 합성된 β-SiC 분말의 특성에 미치는 영향

  • Youm, Mi-Rae (Interfacial Control Research Center, Korea Institute of Science and Technology) ;
  • Park, Sang-Whan (Interfacial Control Research Center, Korea Institute of Science and Technology) ;
  • Kim, Young-Wook (Functional Ceramics Laboratory, Department of Materials Science and Engineering, The University of Seoul)
  • 염미래 (한국과학기술연구원 계면제어연구센터) ;
  • 박상환 (한국과학기술연구원 계면제어연구센터) ;
  • 김영욱 (서울시립대학교 신소재공학과 기능성세라믹스연구실)
  • Received : 2012.10.28
  • Accepted : 2012.12.06
  • Published : 2013.01.31
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Abstract

${\beta}$-SiC powders were synthesized by a carbothermal reduction process using $SiO_2$-C precursors fabricated by a sol-gel process using phenol resin and TEOS as starting materials for carbon and Si sources, respectively. The C/Si molar ratio was selected as an important parameter for synthesizing SiC powders using a sol-gel process, and the effects of the C/Si molar ratio (1.4-3.0) on the particle size, particle size distribution, and yield of the synthesized ${\beta}$-SiC powders were investigated. It was found that (1) the particle size of the synthesized ${\beta}$-SiC powders decreased with an increase in the C/Si molar ratio in the $SiO_2$-C hybrid precursors, (2) the particle size distribution widened with an increase in the C/Si molar ratio, and (3) the yield of the ${\beta}$-SiC powder production increased with an increase in the C/Si molar ratio.

Keywords

References

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