Hao Yin, Xin-Bing Zhao, Qian Zhang,  and Tie-Jun Zhu, Thermoelectric properties of quaternary Mg2Sn0.4Si0.6-xGex alloys, Int. J. Miner. Metall. Mater., 16(2009), No. 5, pp. 564-567. https://doi.org/10.1016/S1674-4799(09)60097-2
Cite this article as:
Hao Yin, Xin-Bing Zhao, Qian Zhang,  and Tie-Jun Zhu, Thermoelectric properties of quaternary Mg2Sn0.4Si0.6-xGex alloys, Int. J. Miner. Metall. Mater., 16(2009), No. 5, pp. 564-567. https://doi.org/10.1016/S1674-4799(09)60097-2
Materials

Thermoelectric properties of quaternary Mg2Sn0.4Si0.6-xGex alloys

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  • Corresponding author:

    Xin-Bing Zhao    E-mail: zhaoxb@zju.edu.cn

  • Received: 8 October 2008
  • Quaternary alloys Mg2Sn0.4Si0.6-xGex (x=0, 0.02, 0.05, 0.08 0.1, and 0.2) were prepared using induction melting followed by hot-pressing. Relative densities of the sintered samples were over 97% of the theoretical values. Multiple phases were detected in the samples. It was found that the Seebeck coefficient was sensitive to the content of Mg2Ge and a maximum value of about 350 μV-K-1 was obtained. The introduction of Ge increases the electrical conductivity and the thermal conductivity simultaneously. The mechanism of this phenomenon was discussed. A maximum dimensionless figure of merit, ZT, of about 0.28 was obtained for Mg2Sn0.4Si0.55Ge0.05 at 550 K.
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