Proceedings of the Korean Powder Metallurgy Institute Conference (한국분말야금학회:학술대회논문집)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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Production of Nanosized WC Powder by Vapor Phase Reaction

  • Cho, Gi-Chul (Division of Materials Science and Engineering, Pukyong National University) ;
  • Lee, Gil-Geun (Division of Materials Science and Engineering, Pukyong National University) ;
  • Ha, Gook-Hyun (Korea Institute of Machinery & Materials) ;
  • Kim, Byung-Kee (Korea Institute of Machinery & Materials)
  • Published : 2006.09.24
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Abstract

In the present study, the focus is on the synthesis of nanosized WC powder by the chemical vapor condensation proces. The synthesized W-C system powder by the CVC process shows W2C, W, WO3 phases and can not shows WC phase. After recarburization heat treatment under mixture gas atmosphere of argon and hydrogen gases, the synthesized W-C system powder fully transformed to the pure WC. The synthesized WC powder after recarburization heat treatment has an average particle size of 20 nm. The nano-sized WC powder can be prepared by the combination of the CVC process and heat treatment methods.

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