Journal of Powder Materials (한국분말재료학회지)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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Formation of Nano-oxides on Porous Metallic Glass Compacts using Hydrothermal Synthesis

수열합성 공정을 이용한 금속 다공체의 나노 산화물 형성

  • Park, H.J. (Department of Advanced Materials Engineering, Sejong University) ;
  • Kim, Y.S. (Department of Advanced Materials Engineering, Sejong University) ;
  • Hong, S.H. (Department of Advanced Materials Engineering, Sejong University) ;
  • Kim, J.T. (Department of Advanced Materials Engineering, Sejong University) ;
  • Cho, J.Y. (Department of Advanced Materials Engineering, Sejong University) ;
  • Lee, W.H. (Department of Advanced Materials Engineering, Sejong University) ;
  • Kim, Ki Buem (Department of Advanced Materials Engineering, Sejong University)
  • 박혜진 (세종대학교 나노.신소재공학과) ;
  • 김영석 (세종대학교 나노.신소재공학과) ;
  • 홍성환 (세종대학교 나노.신소재공학과) ;
  • 김정태 (세종대학교 나노.신소재공학과) ;
  • 조재영 (세종대학교 나노.신소재공학과) ;
  • 이원희 (세종대학교 나노.신소재공학과) ;
  • 김기범 (세종대학교 나노.신소재공학과)
  • Received : 2015.08.14
  • Accepted : 2015.08.26
  • Published : 2015.08.28
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Abstract

Porous metallic glass compact (PMGC) are developed by electro-discharge sintering (EDS) process of gas atomized $Zr_{41.2}Ti_{13.8}Cu_{12.5}Ni_{10}Be_{22.5}$ metallic glass powder under of 0.2 kJ generated by a $450{\mu}F$ capacitor being charged to 0.94 kV. Functional iron-oxides are formed and growth on the surface of PMGCs via hydrothermal synthesis. It is carried out at $150^{\circ}C$ for 48hr with distilled water of 100 mL containing Fe ions of 0.18 g/L. Consequently, two types of iron oxides with different morphology which are disc-shaped $Fe_2O_3$ and needle-shaped $Fe_3O_4$ are successfully formed on the surface of the PMGCs. This finding suggests that PMGC witih hydrothermal technique can be attractive for the practical technology as a new area of structural and functional materials. And they provide a promising road map for using the metallic glasses as a potential functional application.

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