Journal of Powder Materials (한국분말재료학회지)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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Fabrication of Nanostructured Alumina by the Combined Processes of Magnetic Pulsed Compaction (MPC) and Spark Plasma Sintering (SPS)

자기펄스성형법 및 통전가압소결법의 연속공정을 이용한 고밀도 나노 알루미나 세라믹의 제조

  • Lee, J. K. (Nuclear Materials Technology Development Team, Korea Atomic Energy Research Institute) ;
  • Hong, S. J. (Nuclear Materials Technology Development Team, Korea Atomic Energy Research Institute) ;
  • Lee, M. K. (Nuclear Materials Technology Development Team, Korea Atomic Energy Research Institute) ;
  • Rhee, C. K. (Nuclear Materials Technology Development Team, Korea Atomic Energy Research Institute)
  • Published : 2005.10.01
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Abstract

In this study the nanostructured ${\alpha}-Al_{2}O_3$ ceramics have been fabricated by the combined application of magnetic pulsed compaction (MPC) and subsequent spark plasma sintering (SPS), and their density and hardness properties were investigated. The ${\alpha}-Al_{2}O_3$ prepared by the combined processes showed an increase by $8.4\%$ in density, approaching the value close to the true density, and an enhancement by $210\~400\;Hv$ in hardness, compared to those fabricated by MPC or static compaction method followed by sintering treatment.

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References

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