Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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The Investigation of Reaction Parameters on the Reactivity in the Preparation of TiB2 by SHS

자전연소합성법에 의한 TiB2 분말의 제조에 있어 반응성에 대한 반응변수의 고찰

  • Shin, Chang-Yun (Engineering Research Center for Rapidly Solidified Materials, Chungnam National University) ;
  • Park, Young-Chul (Engineering Research Center for Rapidly Solidified Materials, Chungnam National University) ;
  • Lee, Huk-Hee (Korea Research Institute of Chemical Technology) ;
  • Nersisyan, Hayk (Engineering Research Center for Rapidly Solidified Materials, Chungnam National University) ;
  • Won, Chang-Whan (Engineering Research Center for Rapidly Solidified Materials, Chungnam National University)
  • 신창윤 (충남대학교 급속응고신소재연구소) ;
  • 박영철 (충남대학교 급속응고신소재연구소) ;
  • 이혁희 (한국화학연구원) ;
  • ;
  • 원창환 (충남대학교 급속응고신소재연구소)
  • Published : 2006.01.01
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Abstract

The preparation of $TiB_2$ by SHS in $B_2O_3-Mg-TiO_2$ system was investigated in this study. In the preparation of $TiB_2$, the effect on reactivity and reaction products of the initial pressure of inert gas in reactor, the content of Mg and $TiO_2$ in mixture was investigated. The minimum initial pressure of inert gas in reactor for SHS reaction in this system was 5atm, and as the pressure increased, the concentration of unreacted Mg decreased and combustion temperature increased. At the initial inert gas pressure in reactor of 50atm, the optimum composition for the preparation of pure $TiB_2$ was $B_2O_3+5Mg+TiO_2$. The $TiB_2$ synthesized in this condition had an irregular shape and the particle size of $1\~3{\mu}m$.

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References

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