Preparation and study of the thermoelectric properties of Fe2TiSn1–x Si x Heusler alloys

Polycrystalline alloys Fe2TiSn1–xSix (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 phas...

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Bibliographic Details
Published in:Semiconductors (Woodbury, N.Y.) N.Y.), 2017-07, Vol.51 (7), p.891-893
Main Authors: Voronin, A. I., Zueva, V. Yu, Karpenkov, D. Yu, Moskovskikh, D. O., Novitskii, A. P., Miki, H., Khovaylo, V. V.
Format: Article
Language:English
Subjects:
Heat transfer
Heusler alloys
Multiphase
Silicon base alloys
Thermal conductivity
Thermoelectric materials
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Summary:Polycrystalline alloys Fe2TiSn1–xSix (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–xSix samples, which does not allow consideration of these materials as promising thermoelectrics.
ISSN:1063-7826
1090-6479
DOI:10.1134/S1063782617070363