Journal of Powder Materials (한국분말재료학회지)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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Fundamental Aspects of Resistance Sintering under Ultrahigh Pressure Consolidation

  • Zhou, Zhangjian (School of Materials Science and Engineering, University of Science and Technology Beijing) ;
  • Kim, Ji-Soon (School of Materials Science and Engineering, University of Ulsan) ;
  • Yum, Young-Jin (School of Mechanical Engineering, University of Ulsan)
  • Received : 2012.01.05
  • Accepted : 2012.02.01
  • Published : 2012.02.28
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Abstract

The consolidation results of fine tungsten powders, W-Cu composite and W/Cu FGM by using a novel method combining resistance sintering with ultra high pressure have been reviewed. The densification effects of the consolidation parameters, including pressure, input power and sintering time, have been investigated. The sintering mechanism of this method was quite different from other sintering methods. Particle rearrangement, sliding, distortion and crushing due to the ultra high pressure are the dominant mehanisms at the initial stage, then the dominant sintering mechanisms are transient arc-fused processes controlled by the input power.

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References

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