Proceedings of the Korean Powder Metallurgy Institute Conference (한국분말야금학회:학술대회논문집)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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Fabrication of Nanostructured Fe-Co Alloy Powders by Hydrogen Reduction and its Magnetic Properties

  • Lee, Young-Jung (Division of Materials Science and Engineering, Hanyang University) ;
  • Lee, Baek-Hee (Nanoarchitectronics Research Center(NARC), National Institute of Advanced Industrial Science and Technology(AIST)) ;
  • Kim, Gil-Su (Division of Materials Science and Engineering, Hanyang University) ;
  • Lee, Kyu-Hwan (Future Technology Research Division, Korea Institute of Science and Technology(KIST)) ;
  • Kim, Young-Do (Division of Materials Science and Engineering, Hanyang University)
  • Published : 2006.09.24
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Abstract

Magnetic properties of nanostructured materials are affected by the microstructures such as grain size (or particle size), internal strain and crystal structure. Thus, it is necessary to study the synthesis of nanostructured materials to make significant improvements in their magnetic properties. In this study, nanostructured Fe-20at.%Co and Fe-50at.%Co alloy powders were prepared by hydrogen reduction from the two oxide powder mixtures, $Fe_2O_3$ and $Co_3O_4$. Furthermore, the effect of microstructure on the magnetic properties of hydrogen reduced Fe-Co alloy powders was examined using XRD, SEM, TEM, and VSM.

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