Journal of Powder Materials (한국분말재료학회지)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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Synthesis of Ultrafine and Less Agglomerated TiCN Powders by Magnesiothermic Reduction

마그네슘 열환원에 의한 저응집 초미립 TiCN 분말합성

  • Lee, Dong-Won (Powder Technology Research Group, Korea Institute of Materials Science (KIMS))
  • 이동원 (한국기계연구원 부설 재료연구소)
  • Received : 2012.07.30
  • Accepted : 2012.08.28
  • Published : 2012.10.28
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Abstract

The ultra-fine and less agglomerated titanium carbonitride particles were successfully synthesized by magnesiothermic reduction with low feeding rate of $TiCl_4+1/4C_2Cl_4$ solution. The sub-stoichiometric titanium carbide ($TiC_{0.5{\sim}0.6}$) particles were produced by reduction of chlorine component by liquid magnesium at $800^{\circ}C$ of gaseous $TiCl_4+1/4C_2Cl_4$ and the heat treatments in vacuum were performed for 5 hours to remove the residual magnesium and magnesium chloride mixed with produced $TiC_{{\sim}0.5}$. The final $TiC_{{\sim}0.5}N_{0{\sim}0.5}$ particle with near 100 nm in mean size and high specific surface area of $65m^2/g$ was obtained by nitrification under nitrogen gas at $1,150^{\circ}C$ for 2 hrs.

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