한국분말재료학회지 (Journal of Powder Materials)

  • 제17권4호
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  • Pages.336-341
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  • 2010
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  • 2799-8525(pISSN)
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  • 2799-8681(eISSN)
한국분말재료학회 (*구 분말야금학회) (The Korean Powder Metallurgy & Materials Institute)
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산화물 환원공정에 의한 Bi-Sb-Te계 열전분말 합성

Synthesis of Bi-Sb-Te-based Thermoelectric Powder by an Oxide-reduction Process

  • Lee, Gil-Geun (Division of Materials Science and Engineering, Pukyong National University) ;
  • Kim, Sung-Hyun (Division of Materials Science and Engineering, Pukyong National University) ;
  • Ha, Gook-Hyun (Korea Institute of Materials Science) ;
  • Kim, Kyung-Tae (Korea Institute of Materials Science)
  • 투고 : 2010.06.30
  • 심사 : 2010.08.12
  • 발행 : 2010.08.28
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초록

The present study focused on the synthesis of Bi-Sb-Te-based thermoelectric powder by an oxidereduction process. The phase structure, particle size of the synthesized powders were analyzed using XRD and SEM. The synthesized powder was sintered by the spark plasma sintering method. The thermoelectric property of the sintered body was evaluated by measuring the Seebeck coefficient and specific electric resistivity. The $Bi_{0.5}Sb_{1.5}Te_3$ powder had been synthesized by a combination of mechanical milling, calcination and reduction processes using mixture of $Bi_2O_3$, $Sb_2O_3$ and $TeO_2$ powders. The sintered body of the $Bi_{0.5}Sb_{1.5}Te_3$ powder synthesized by an oxide-reduction process showed p-type thermoelectric characteristics, even though it had lower thermoelectric properties than the sintered body of the $Bi_{0.5}Sb_{1.5}Te_3$ thermoelectric powder synthesized by the conventional melting-crushing method.

키워드

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피인용 문헌

  1. Thermoelectric Powder by Gas Atomization Process vol.18, pp.5, 2011, https://doi.org/10.4150/KPMI.2011.18.5.449