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

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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Thermoelectric Properties of Fe-doped $CoSb_3$ Prepared by Encapsulated Induction Melting and Hot Pressing

  • Park, Kwan-Ho (Department of Materials Science and Engineering/ReSEM, Chungju National University) ;
  • Kim, Mi-Jung (Department of Materials Science and Engineering/ReSEM, Chungju National University) ;
  • Jung, Jae-Yong (Department of Materials Science and Engineering/ReSEM, Chungju National University) ;
  • You, Sin-Wook (Research Center for Sustainable ECo-Devices & Materials (ReSEM), Chungju National University) ;
  • Lee, Jung-Il (Department of Materials Science and Engineering/ReSEM, Chungju National University) ;
  • Ur, Soon-Chul (Department of Materials Science and Engineering/ReSEM, Chungju National University) ;
  • Kim, Il-Ho (Research Center for Sustainable ECo-Devices & Materials (ReSEM), Chungju National University)
  • Published : 2006.09.24
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Abstract

The encapsulated induction melting and hot pressing were employed to prepare Fe-doped $CoSb_3$ skutterudites and their thermoelectric properties were investigated. Single phase $\delta-CoSb_3$ was successfully obtained by the subsequent heat treatment at 773K for 24 hours. Iron atoms acted as electron acceptors by substituting cobalt atoms. Thermoelectric properties were remarkably improved by the appropriate doping. $Co_{0.7}Fe_{0.3}Sb_3$ was found as an optimum composition for best thermoelectric properties in this work.

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