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J. Korean Ceram. Soc. > Volume 44(2); 2007 > Article
Journal of the Korean Ceramic Society 2007;44(2): 93.
doi: https://doi.org/10.4191/kcers.2007.44.2.093
자전 연소 합성법에 의한 고순도 실리콘 분말제조
신창윤, 민현홍, 윤기석, 원창환
충남대학교 급속응고신소재연구소
Preparation of High Purity Si Powder by SHS
Chang-Yun Shin, Hyun-Hong Min, Ki-Seok Yun, Chang-Whan Won
Engineering Research Center for Rapidly Solidified Materials, Chungnam National University
High purity Si powder was prepared in the system of $SiO_2-Mg$ combustion reaction. Various conditions of combustion reaction and leaching were investigated. As the particle size of Mg decreased and the compaction pressure increased the quantity of the unreacted power was decreased. In the acid leaching of MgO, increasing particle size, reaction temperature, rotating speed and reaction time made leaching effect low. Final Si powder produced by combustion and leaching reaction, has a high purity of 99.9% with irregular shape.
Key words: Combustion, Leaching, Silicon, $SiO_2$, SHS
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