Abstract
Polycrystalline alloys Fe2TiSn1–x Si x (0 ≤ x ≤ 1) theoretically predicted as highly efficient thermoelectric materials are experimentally studied. Structural studies show that the partial substitution of Sn with Si results in the formation of a multiphase state in samples with x > 0. Impurity phases in general lead to a significant decrease in the Seebeck coefficient and an increase in the thermal conductivity of Fe2TiSn1–x Si x samples, which does not allow consideration of these materials as promising thermoelectrics.
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Original Russian Text © A.I. Voronin, V.Yu. Zueva, D.Yu. Karpenkov, D.O. Moskovskikh, A.P. Novitskii, H. Miki, V.V. Khovaylo, 2017, published in Fizika i Tekhnika Poluprovodnikov, 2017, Vol. 51, No. 7, pp. 929–932.
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Voronin, A.I., Zueva, V.Y., Karpenkov, D.Y. et al. Preparation and study of the thermoelectric properties of Fe2TiSn1–x Si x Heusler alloys. Semiconductors 51, 891–893 (2017). https://doi.org/10.1134/S1063782617070363
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DOI: https://doi.org/10.1134/S1063782617070363