Thermoelectric properties of the hot-pressed (Bi0.2Sb0.8)2Te3 alloy with addition of BN and WO3 powders
Source abstract
Abstract
Thermoelectric properties of the (Bi0.2Sb0.8)2Te3 alloy, fabricated by mechanical alloying and hot-pressing, were investigated with addition of BN and WO3 powders as phonon scattering centers. The Seebeck coefficient and the electrical resistivity of the hot-pressed (Bi0.2Sb0.8)2Te3 alloy increased with increasing the volume fraction of BN and WO3. Although the thermal conductivity of the hot-pressed (Bi0.2Sb0.8)2Te3 alloy decreased with increasing the volume fraction of BN and WO3 due to the reduction of κel, the lattice thermal conductivity was not lowered. The figure-of-merit of the hot-pressed (Bi0.2Sb0.8)2Te3 alloy, 3.05 × 10−3/K without addition of BN and WO3, decreased with increasing the volume fraction of BN and WO3, because the increment of the electrical resistivity was much larger than the decrement of the thermal conductivity due to the grain refinement.
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Research context
OpenAlex topics: Advanced Thermoelectric Materials and Devices · Thermodynamic and Structural Properties of Metals and Alloys · Advanced Sensor Technologies Research
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (23)
Show source-provided references
1. D. M. Rowe, “CRC Handbook of Thermoelectrics” (CRC Press, Boca Raton, 1995) p. 597.
2. W. M. Yim and F. D. Rosi, J. Solid-State Electronics, 15 (1972) 1121.10.1016/0038-1101(72)90172-4 ↗
3. K. Uemura and I. Nishida, “Thermoelectric Semiconductors and Their Applications” (Nikkan-Kygyo Shinbun Press, Tokyo, 1988), p. 145.
4. H. J. Kim, H. C. Kim, D. B. Hyun and T. S. Oh, Metals and Mater. 4 (1998) 75.10.1007/BF03026068 ↗
5. B. Y. Jung, T. S. Oh, D. B. Hyun and J. D. Shim, J. Kor. Phys. Soc. 31 (1998) 219.
6. P. G. Klemens, Proc. Mat. Res. Soc. Symp. 234 (1991) 87.10.1557/PROC-234-87 ↗
7. C. B. Vining, ibid. 234 (1991) 95.10.1557/PROC-234-95 ↗
8. G. A. Slack and M. A. Hussain, J. Appl. Phys. 70 (1991) 2694.10.1063/1.349385 ↗
9. J. P. Fleurial, in Proceedings of the 12th International Conference on Thermoelectrics, Yokohama, November 1993, edited by K. Matsuura, p. 1.
10. J. S. Beaty, J. L. Rolfe and J. W. Vandersande, Proc. Mat. Res. Soc. Symp. 234 (1991) 105.10.1557/PROC-234-105 ↗
11. J. W. Vandersande, J. P. Fleurial, N. Scoville and J. L. Rolfe, in Proceedings of the 12th International Conference on Thermoelectrics, Yokohama, November 1993, edited by K. Matsuura, p. 11.
12. J. S. Benjamin, Metall. Trans. 1 (1970) 2943.10.1007/BF03037835 ↗
13. T. Tokiai, T. Ohta, M. Nosaksa, K. Sugimoto and T. Kajikawa, in Proceedings of the 9th International Conference on Thermoelectrics, Pasadena, March 1990, edited by C. B. Vining, p. 48.
14. B. A. Cook, B. J. Beaudry, J. L. Harringa and W. J. Barnett, in Proceedings of the 9th International Conference on Thermoelectrics, Pasadena, March 1990, edited by C. B. Vining, p. 234.
15. A. Yanagitani, S. Nishikawa, Y. Kawai, S. Hayashimoto, N. Itoh and T. Kataoka, in Proceedings of the 12th International Conference on Thermoelectrics, Yokohama, November 1993, edited by K. Matsuura, p. 281.
16. I. Barin, “Thermochemical Data of Pure Substances” (VCH, New York, 1989) p. 121 and p. 1160.
17. Idem, “ibid., p. 204 and p. 1306.
18. T. C. Harman, J. H. Cahn and M. J. Logan, J. Appl. Phys. 30 (1959) 1351.10.1063/1.1735334 ↗
19. B. D. Cullity, “Elements of X-Ray Diffraction” (Addison-Wesley, Reading, 1978) p. 112.
20. D. A. Porter and K. E. Eastering, “Phase Transformations in Metals and Alloys” (Chapman & Hall, London, 1992) p. 142.10.1007/978-1-4899-3051-4 ↗
21. J. Seo, K. Park, D. Lee and C. Lee, Scripta Mater. 38 (1998) 477.10.1016/S1359-6462(97)00463-6 ↗
22. R. Ionescu, J. Jaklovzsky, N. Nistor and A. Chiculita, Phys. Status. Solidi(A) 27 (1975) 27.10.1002/pssa.2210270103 ↗
23. I. Ohnaka, H. Yasuda, I. Yamauchi, T. Ohmichi, H. Hagino and R. Koike, in Proceedings of the 12th International Conference on Thermoelectrics, Yokohama, November 1993, edited by K. Matsuura, p. 121.