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볼밀링한 WO3-CuO 나노복합분말의 조성에 따른 수소환원 거동

The Effect of Composition on Hydrogen Reduction Behavior ofBall-milled WO3-CuO Nanocomposite Powders

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참고문헌

주제분류금속공학

초록

Abstract

The effect of Cu content on hydrogen reduction behavior of ball-milled WO3-CuO nanocomposite powders was investigated. Hydrogen reduction behavior and reduction percent(α) of nanopowders were characterized by thermogravimetry (TG) and hygrometry measurements. Activation energy for hydrogen reduction of WO3 nanopowders with different Cu content was calculated at each heating rate and reduction percent(α). The activation energy for reduction of WO3 obtained in this study existed in the ranging from 129 to 139 kJ/mol, which was in accordance with the activation energy for WO3 powder reduction of conventional micron-sized.

참고문헌 (2)

  1. "Treatise on Powder Metallurgy" (1950), Interscience Publisher Inc.
  2. "Tungsten and Refractory Metals-1994", pp.228~ (1994)

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