Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Preparation of AlN Powder by Combustion Reaction in the System of Al-AlN-NH4Cl

Al-AlN-NH4Cl 계에서 연소반응에 의한 AlN 분말의 제조

  • Min, Hyun-Hong (Engineering Research Center for Rapidly Solidified Materials, Chungnam National University) ;
  • Won, Chang-Whan (Engineering Research Center for Rapidly Solidified Materials, Chungnam National University)
  • 민현홍 (충남대학교 급속응고신소재연구소) ;
  • 원창환 (충남대학교 급속응고신소재연구소)
  • Published : 2006.07.01
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Abstract

The preparation of AlN powder by SHS in the system of $Al-AlN-NH_4Cl$ was investigated in this study. In the preparation of AlN powder, the effect of gas pressure and the composition such as Al, AlF, and additive in mixture on the reactivity were investigated. At 60 atm of the initial inert gas pressure in reactor, the optimum composition for the preparation of pure AlN was 35 wt%Al+5 wt% $NH_4Cl+60wt%$AlN. The AlN powder synthesized in this condition was a single phase AlN with a whisker morphology.

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References

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