Journal of Powder Materials (한국분말재료학회지)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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Synthesis of Zirconium-Based Nanopowder by the Plasma Arc Discharge Process

플라즈마 아크 방전법에 의한 Zr계 나노분말 제조

  • Lee, Gil-Geun (Division of Materials Science and Engineering, Pukyong National University) ;
  • Kim, Kyong-Ju (Division of Materials Science and Engineering, Pukyong National University) ;
  • Park, Je-Shin (Division of Minerals and Materials Processing, Korea Institute of Geoscience and Minerals Resources)
  • 이길근 (부경대학교 신소재공학부) ;
  • 김경주 (부경대학교 신소재공학부) ;
  • 박제신 (한국지질자원연구원 자원활용소재연구부)
  • Published : 2007.02.28
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Abstract

The present study was focused on the synthesis of a zirconium-based alloyed nanopowder by the plasma arc discharge process. The chemical composition, phase structure, particle size and hydrogen sorption property of the synthesized powders under various synthesis conditions were analyzed using XRF, XRD, SEM, XPS and the ASTM-F798 method. The chemical composition of the synthesized Zr-V-Fe-based powders approached that of the raw material with an increasing hydrogen fraction in the powder synthesis atmosphere. The synthesized $Zr_{55}V_{29}Fe_{16}$ powder consist of a mixed phase structure of the $Zr,\;ZrH_2,\;FeV\;and\;Zr(V_{1-x}Fe_{x})_2$ phases. This powder has an average particle size of about 20 nm. The synthesized $Zr_{55}V_{29}Fe_{16}$ nanopowder showed getter characteristics, even though it had a lower hydrogen sorption speed than the $Zr_{57}\;V{36}\;Fe_7$ getter powder. However, the synthesized Zr nanopowder with an average particle size of 20 nm showed higher hydrogen sorption speed than the $Zr_{57}\;V{36}\;Fe_7$ getter powder.

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References

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