Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
권호 표지
DOI QR코드

DOI QR Code

Preparation of High Purity Si Powder by SHS

자전 연소 합성법에 의한 고순도 실리콘 분말제조

  • Shin, Chang-Yun (Engineering Research Center for Rapidly Solidified Materials, Chungnam National University) ;
  • Min, Hyun-Hong (Engineering Research Center for Rapidly Solidified Materials, Chungnam National University) ;
  • Yun, Ki-Seok (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) ;
  • 민현홍 (충남대학교 급속응고신소재연구소) ;
  • 윤기석 (충남대학교 급속응고신소재연구소) ;
  • 원창환 (충남대학교 급속응고신소재연구소)
  • Published : 2007.02.28
Download PDF
⟨ Previous Next ⟩

Abstract

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.

Keywords

References

  1. J. H. Lee, W. K. Choo, and K. S. Go, 'The Preparation of High-Purity Silicon by Hydrogen Reduction of Trichlorosilane,' J. Kor. Inst. Met & Mater., 14 [3] 288-295 (1976)
  2. D. Kata, J. Lis, and R. Pampuch, 'Combustion Synthesis of Multiphase Powders in the Si---C---N System,' Solid State Ionics, 101-103 Part 1, November 65-70 (1997) https://doi.org/10.1016/S0167-2738(97)84010-6
  3. B. W. Jong, 'Formation of Silicon Carbide from Silica Residues and Carbon,' Bull. Am. Ceram. Soc., 58 [8] 788-789 (1979)
  4. C. A. Slack, 'Nonmetallic Crystal with High Thermal Conductivity,' J. Phys. Chem. Solid, 34 321-335 (1973) https://doi.org/10.1016/0022-3697(73)90092-9
  5. A. G. Merzhanov, 'Combustion Processes That Synthesize Materials,' J. Mater. Processing Tech., 56 [1-4] 222-41 (1996) https://doi.org/10.1016/0924-0136(95)01837-9
  6. J. Kiser and R. M. Spriggs, 'Soviet SHS Technology: A Potential U. S. Advantage in Ceramics,' Ceram. Bull., 68 [6] 1165-1167 (1989)