Korean Journal of Materials Research (한국재료학회지)

Materials Research Society of Korea (한국재료학회)
권호 표지
DOI QR코드

DOI QR Code

Synthesis and Thermoelectric Properties of Skutterudite CoSb3

Skutterudite CoSb3의 합성 및 열전특성

  • Kim I. H. (Department of Materials Science and Engineering/ReSeM, Chungju National University) ;
  • You S. W. (Department of Materials Science and Engineering/ReSeM, Chungju National University) ;
  • Park J. B. (Department of Materials Science and Engineering/ReSeM, Chungju National University) ;
  • Lee J. I. (Department of Materials Science and Engineering/ReSeM, Chungju National University) ;
  • Ur S. C. (Department of Materials Science and Engineering/ReSeM, Chungju National University) ;
  • Jang K. W. (Department of Advanced Materials Engineering/ReSEM, Hanseo University) ;
  • Choi G. S. (Minerals and Materials Processing Div., Korea Institute of Geoscience and Mineral Resources) ;
  • Kim J. S. (Minerals and Materials Processing Div., Korea Institute of Geoscience and Mineral Resources) ;
  • Kim H. J. (Division of Liberal Arts/Chemistry, Chungju National University)
  • 김일호 (충주대학교 신소재공학과/친환경 에너지 변환 저장소재 및 부품개발 연구센터) ;
  • 유신욱 (충주대학교 신소재공학과/친환경 에너지 변환 저장소재 및 부품개발 연구센터) ;
  • 박종범 (충주대학교 신소재공학과/친환경 에너지 변환 저장소재 및 부품개발 연구센터) ;
  • 이정일 (충주대학교 신소재공학과/친환경 에너지 변환 저장소재 및 부품개발 연구센터) ;
  • 어순철 (충주대학교 신소재공학과/친환경 에너지 변환 저장소재 및 부품개발 연구센터) ;
  • 장경욱 (한서대학교 신소재공학과/친환경 에너지 변환 저장소재 및 부품개발연구센터) ;
  • 최국선 (한국지질자원연구원 자원활용소재연구부) ;
  • 김준수 (한국지질자원연구원 자원활용소재연구부) ;
  • 김현주 (충주대학교 교양과정부/화학영역)
  • Published : 2005.10.01
Download PDF
⟨ Previous Next ⟩

Abstract

Binary skutterudite $CoSb_3$ compounds were prepared by the arc melting and hot pressing processes and their thermoelectric properties were investigated in the range from 300 to 600 K. Annealing effect was correlated to phase transformation and homogenization. Thermoelectric properties of the arc-melted and hot-pressed $CoSb_3$ were discussed and compared. Undoped intrinsic $CoSb_3$ prepared by the arc melting showed p-type conduction, while it showed metallic behavior with increasing measuring temperature. However, hot pressed specimens showed n-type conduction, possibly due to Sb evaporation. Thermoelectric properties were remarkably improved by annealing In vacuum and they were closely related to phase transformation.

Keywords

References

  1. J.-P. Fleurial, T. Caillat and A. Borshchevski, Proc. 13th Intl. Conf. Thermoelectrics, 40 (1994)
  2. G. S. Nolas, H. B. Lyon, J. L. Cohn, T. M. Tritt and G. A. Slack, Proc. 16th IntI. Conf. Thermoelectrics, 321 (1997)
  3. T. B. Massalski, H. Okamoto, P. R. Subramanian and L. Kacprzak, 'Binary Alloy Phase Diagrams, 2nd Ed.', American Society for Metals, 1232 (1990)
  4. J. W. Sharp, E. C. Jones, R. K. Williams, P. M. Martin and B. C. Sales, J. Appl. Phys., 78(2), 1013 (1995) https://doi.org/10.1063/1.360402
  5. G. S. Nolas, G. A. Slack, T. M. Tritt and D. T. Morelli, Proc. 14th Intl. Conf. Thennoelectrics, 236 (1995)
  6. T. Caillat, A. Borshchevski and J.-P. Fleurial, Proc. 13th Intl. Conf. Thermoelectrics, 58 (1994)
  7. P. Feschotte and D. Lorin, J. Less-Common Metals, 155, 255 (1989) https://doi.org/10.1016/0022-5088(89)90235-X
  8. Y. Kawaharada, K. Kurosaki, M. Uno and S. Yamanaka, J. Alloys & Comp., 375, 193 (2001)
  9. J. X. Zhang, Q. M. Lu, K. G. Liu, L. Zhang and M. L. Zhou, Mater. Lett., 58, 1981 (2004) https://doi.org/10.1016/j.matlet.2003.11.032
  10. T. Caillat, A. Borshchevski and J.-P. Fleurial, J. Appl. Phys., 80(8), 4442 (1996) https://doi.org/10.1063/1.363405
  11. D.-T. Morelli, G.-P. Meisner, B. X. Chen, S. Q. Hu and C. Uher, Phys. Rev., B56, 7346 (1997)