Particle and aerosol research (한국입자에어로졸학회지)

Korean Association for Particle and Aerosol Research (한국입자에어로졸학회)
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Fabrication of tungsten carbide by pulsed electric current heating

펄스통전가열에 의한 텅스텐 탄화물의 제조

  • Hong, Seong-Hyeon (Group of Powder Technology Research, Korea Institute of Materials Science, Korea Institute of Machinery and Materials) ;
  • Kim, Hyun-Jin (Group of Powder Technology Research, Korea Institute of Materials Science, Korea Institute of Machinery and Materials)
  • 홍성현 (한국기계연구원 부설 재료연구소 분말기술연구그룹) ;
  • 김현진 (한국기계연구원 부설 재료연구소 분말기술연구그룹)
  • Received : 2009.12.01
  • Accepted : 2009.12.24
  • Published : 2009.12.31
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Abstract

Tungsten carbide powder was fabricated with carbothermal reaction by pulsed electric current flowing in compact of tunsten oxide and carbon. The mixed powder of tunsten oxide and carbon was ball-milled into ultrafine powders. The mixed powder of tungsten oxide and carbon was put into carbon mold and heat-treated at $1050{\sim}1200^{\circ}C$ by pulsed electric current flowing. The formation of tungsten carbide powder could be achieved by heat treatment at $1200^{\circ}C$ for 10 minitues.

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