Journal of Powder Materials (한국분말재료학회지)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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Synthesis of Bi-Sb-Te Thermoelectric Nanopowder by the Plasma Arc Discharge Process

플라즈마 아크 방전법에 의한 Bi-Sb-Te 나노 열전분말 제조

  • Lee, Gil-Geun (Division of Materials Science and Engineering, Pukyong National University) ;
  • Lee, Dong-Youl (Division of Materials Science and Engineering, Pukyong National University) ;
  • Ha, Gook-Hyun (Korea Institute of Materials Science)
  • Published : 2008.10.28
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Abstract

The present study focused on the synthesis of a bismuth-antimony-tellurium-based thermoelectric nanopowders using plasma arc discharge process. The chemical composition, phase structure, particle size of the synthesized powders under various synthesis conditions were analyzed using XRF, XRD and SEM. The powders as synthesized were sintered by the plasma activated sintering. The thermoelectric properties of sintered body were analyzed by measuring Seebeck coefficient, specific electric resistivity and thermal conductivity. The chemical composition of the synthesized Bi-Sb-Te-based powders approached that of the raw material with an increasing DC current of the are plasma. The synthesized Bi-Sb-Te-based powder consist of a mixed phase structure of the $Bi_{0.5}Sb_{1.5}Te_{3}$, $Bi_{2}Te_{3}$ and $Sb_{2}Te_{3}$ phases. This powder has homogeneous mixing state of two different particles in an average particle size; about 100nm and about 500nm. The figure of merit of the sintered body of the synthesized 18.75 wt.%Bi-24.68 wt.%Sb-56.57 wt.%Te nanopowder showed higher value than one of the sintered body of the mechanically milled 12.64 wt.%Bi-29.47 wt.%Sb-57.89 wt.%Te powder.

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References

  1. A. Majumdar: Science, 303 (2004) 777 https://doi.org/10.1126/science.1093164
  2. C. B. Vining: Nature, 413 (2001) 577 https://doi.org/10.1038/35098159
  3. B. C. Sales: Science, 295 (2002) 1248 https://doi.org/10.1126/science.1069895
  4. H. Scherrer and S. Scherrer: CRC Handbook of Thermoelectrics ed. by D. M. Rowe, CRC Press, New York (1995) 211
  5. K. Uemura and I. Nishida: Thermoelectric Semiconductor and its Application, Nikkankougyo Shinbunsya, Tokyo (1985) 13
  6. C. Wood: Energy Convers. Mgmt, 24 (1984) 317 https://doi.org/10.1016/0196-8904(84)90012-8
  7. G. Wiedemann and R.Franz: Ann. Phys., 89 (1853) 497
  8. K. Uemura and I. Nishida: Thermoelectric Semiconductor and its Application, Nikkankougyo Shinbunsya, Tokyo (1985) 149
  9. G. A. Slack: CRC Handbook of Thermoelectrics ed. by D. M. Rowe, CRC Press, New York (1995) 411
  10. K. E. Gonsalves, S. P. Rangarajan and J. Wang: Handbook of Nanostructured Materials and Nanotechnology ed. by H. S. Nalwa, Academic Press, London (2000) 1
  11. A. M. Rao, X. Ji and T. M. Tritt : MRS Bulletin, 31 (2006) 218 https://doi.org/10.1557/mrs2006.48
  12. B. Poudel, Q. Hao, J. Liu and M. S. Dresselhaus: Science, 320 (2008) 634 https://doi.org/10.1126/science.1156446
  13. J. J. Ritter and P. Maruthamuthu: Inorg. Chem., 33 (1994) 6419 https://doi.org/10.1021/ic00104a065
  14. D. E. Vanghan: Brit. J. App. Phys., 12 (1961) 414 https://doi.org/10.1088/0508-3443/12/8/312
  15. Y. Sakka, and S. Ohno: App. Surface Sci., 100/101 (1996) 232 https://doi.org/10.1016/0169-4332(96)00294-2
  16. P. M. Kumar, C. Balasubramanian, N. D. Sali, S. V. Bhoraska, V. K. Rohatgi and S. Badrinarayanan: Mater. Sci. and Eng., B63 (1999) 215 https://doi.org/10.1016/S0921-5107(99)00038-0
  17. F. Brochin, X. Devaux and H. Scherrer: Nanostructured Mater., 11 (1999) 1 https://doi.org/10.1016/S0965-9773(98)00155-X
  18. S. Ohno, H. Okuyama and Y. Sakka: J. Jap. Soc. Powder Powder Metall., 51 (2004) 777 https://doi.org/10.2497/jjspm.51.777
  19. G. G. Lee and W. Y. Kim: Met. and Mater. Inter., 11 (2005) 177 https://doi.org/10.1007/BF03027463
  20. G. G. Lee and J. S. Park: Mater. Trans., 48 (2007) 1566 https://doi.org/10.2320/matertrans.MER2007031
  21. O. Kubaschewski and C. B. Alcock: Metallurgical Thermochemistry 5th edition, Pergamon Press, New York (1979) 114
  22. O. Kubaschewski and C. B. Alcock: Metallurgical Thermochemistry 5th edition, Pergamon Press, New York (1979) 259
  23. D. Y. Kim and I. Y. Go: Plasma Metallurgy, Bando, Seoul (1997) 474; 김동의, 고인용: 플라즈마 금속학, 반도출판사, 서울 (1997) 474
  24. O. Kubaschewski and C. B. Alcock: Metallurgical Thermochemistry 5th edition, Pergamon Press, New York (1979) 17
  25. J. H. Yu, S. C. Bae, G. H. Ha, B. K. Kim and G. G. Lee: J. Kor. Powder Metall. Inst., 12 (2005) 387 (Korean) https://doi.org/10.4150/KPMI.2005.12.6.387