Journal of Powder Materials (한국분말재료학회지)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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Spark Plasma Sintering Behavior and Heat Dissipation Characteristics of the Aluminum Matrix Composite Materials with the Contents of Graphite

흑연 함량에 따른 알루미늄 기지 복합재료의 방전플라즈마소결 거동 및 방열 특성

  • 권한상 (부경대학교 신소재시스템공학과) ;
  • 박재홍 ((주)차세대소재연구소) ;
  • 주성욱 (경북하이브리드부품연구원) ;
  • 홍상휘 (경북하이브리드부품연구원) ;
  • 문지훈 (경북하이브리드부품연구원)
  • Received : 2016.06.01
  • Accepted : 2016.06.17
  • Published : 2016.06.28
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Abstract

Composite materials consisting of pure aluminum matrix reinforced with different amounts of graphite particles are successfully fabricated by mechanical ball milling and spark plasma sintering (SPS) processes. The shrinkage rates of the composite powders vary with the amount of graphite particles and the lowest shrinkage value is observed for the composite with the highest amount of graphite particles. The current slopes of time increase with increase in the amount of graphite particles whereas the current slopes of temperature show the opposite trend. The highest thermal conductivity is achieved for the composite with the least amount of graphite particles. Therefore, the thermal properties of the composite materials can be controlled by controlling the amount of the graphite particles during the SPS process.

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References

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