Korean Journal of Materials Research (한국재료학회지)

Materials Research Society of Korea (한국재료학회)
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Thermoelectric Properties of Co1-xNixSb3 Prepared by Encapsulated Induction Melting

밀폐유도용해로 제조한 Co1-xNixSb3의 열전특성

  • Kim, Mi-Jung (Department of Materials Science and Engineering/ReSEM, Chungju National University) ;
  • Choi, Hyun-Mo (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 (Department of Materials Science and Engineering/ReSEM, Chungju National University)
  • 김미정 (충주대학교 신소재공학과/친환경 에너지 변환.저장소재 및 부품개발 연구센터) ;
  • 최현모 (충주대학교 신소재공학과/친환경 에너지 변환.저장소재 및 부품개발 연구센터) ;
  • 어순철 (충주대학교 신소재공학과/친환경 에너지 변환.저장소재 및 부품개발 연구센터) ;
  • 김일호 (충주대학교 신소재공학과/친환경 에너지 변환.저장소재 및 부품개발 연구센터)
  • Published : 2006.06.27
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Abstract

Skutterudite $CoSb_3$ doped with nickel was prepared by encapsulated induction melting, and its doping effects on thermoelectric properties were investigated. Single phase ${\delta}-CoSb_3$ was successfully obtained by encapsulated induction melting and subsequent heat treatment at 773 K for 24 h. Nickel atoms acted as electron donors by substituting cobalt atoms. Thermoelectric properties were remarkably improved by appropriate heat treatment and doping, and they were closely related to phase transitions and dopant activation. The maximum ZT(dimensionless figure of merit) was achieved as 0.2 at 600 K for the $Co_{0.93}Ni_{0.07}Sb_3$ specimen.

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References

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