The Transactions of The Korean Institute of Electrical Engineers (전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
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A Study on the Thermal and Electrical Properties of Fabricated Mo-Cu Alloy by Spark Plasma Sintering Method

방전 플라즈마 소결법으로 제작한 Mo-Cu 합금의 열적, 전기적 특성

  • Lee, Han-Chan (Heat Treatment R&D Group, Korea Institute of Industrial Technology, Research Institute of Advanced Manufacturing Technology) ;
  • Lee, Boong-Joo (Dept. of Electronic Engineering, Namseoul University)
  • Received : 2017.05.30
  • Accepted : 2017.09.27
  • Published : 2017.11.01
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Abstract

Mo-Cu alloys have been widely used for heat sink materials, vacuum technology, automobile and many other applications due to their excellent physical and electronic properties. Especially, Mo-Cu composites with 5~20 wt% copper are widely used for the heavy duty service contacts due to their excellent properties like low coefficient of thermal expansion, wear resistance, high temperature strength and prominent electrical and thermal conductivity. In most of the applications, high dense Mo-Cu materials with homogeneous microstructure are required for high performance, which has led in turn to attempts to prepare ultra-fine and well-dispersed Mo-Cu powders in different ways, such as spray drying and reduction process, electroless plating technique, mechanical alloying process and gelatification-reduction process. However, most of these methods were accomplished at high temperature (typically degree), resulting in undesirable growth of large Cu phases; furthermore, these methods usually require complicated experimental facilities and procedure. In this study, Mo-Cu alloying were prepared by planetary ball milling (PBM) and spark plasma sintering (SPS) and the effect of Cu with contents of 5~20 wt% on the microstructure and properties of Mo-Cu alloy has been investigated.

Keywords

References

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