Journal of Powder Materials (한국분말재료학회지)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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Synthesis of Nano-sized Tungsten Carbide Powders by Vapor Phase Reaction of Tungsten Ethoxide

텅스텐 에톡사이드의 기상 반응을 이용한 초미립 WC 분말의 합성

  • 가미다 (한국기계연구원 나노분말재료그룹) ;
  • 하국현 (한국기계연구원 나노분말재료그룹) ;
  • 김병기 (한국기계연구원 나노분말재료그룹)
  • Published : 2003.02.01
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Abstract

Nano-sized WC powders were synthesized by vapor phase reaction using the precusor of tungsten ethoxide under helium and hydrogen atmosphere. The phases of the powder were varied with reaction Bone and gas flow rate. The powder size was about 30nm in diameter, and the tungsten carbide powder was coated by carbon layer. The synthesis of nano-sized WC powders was promoted as the hydrogen gas flow rate became higher. Inversely, tungsten oxide was formed by increasing the flow rate of helium gas. The synthesized powders were analyzed by XRD, FE-SEM, carbon analyzer etc.

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References

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  1. Synthesis of WC Nanosized Powder by the Plasma Arc Discharge Process vol.336-338, pp.1662-9795, 2007, https://doi.org/10.4028/www.scientific.net/KEM.336-338.2086