Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Synthesis of SiC by Self-Propagating High Temperature Synthesis Chemical Furnace

SHS화학로에 의한 SiC의 합성

  • 김도경 (명지대학교 무기재료공학과) ;
  • 박성 (명지대학교 무기재료공학과) ;
  • 조건 (한국과학기술원 무기재료공학과) ;
  • 이형복 (명지대학교 무기재료공학과)
  • Published : 1994.11.01
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Abstract

Ultra-fine $\beta$-SiC powders were fabricated by self-propagating high temperature synthesis process (SHS) using chemical furnace. The dependences of the C powders with different surface areas, the molar ratios of C/Si, the weight ratios of chemical fuel content, and pellet diameter-size on synthesis were investigated. Compositional and structural characterization of these powders was carried out by scanning electron micrograph and X-ray diffraction. The $\beta$-SiC powders which had C/Si mole ratio=1.05, 3 times chemical fuel contents, and pellet diameter=20 mm were optimum for synthesis efficiency. By optimizing process-variables, it is possible to fabricate $\beta$-SiC powders which have little secondary phases ($\alpha$-SiC).

Keywords

References

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