Preparation and study of the thermoelectric properties of Fe2TiSn1–xSix Heusler alloys
- Authors: Voronin A.I.1,2, Zueva V.Y.1, Karpenkov D.Y.1, Moskovskikh D.O.1, Novitskii A.P.1, Miki H.3, Khovaylo V.V.1
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Affiliations:
- National University of Science and Technology “MISiS”
- National Research South Ural State University, Ural Branch
- Frontier Research Institute for Interdisciplinary Science
- Issue: Vol 51, No 7 (2017)
- Pages: 891-893
- Section: XV International Conference “Thermoelectrics and Their Applications—2016”, St. Petersburg, November 15–16, 2016
- URL: https://journals.rcsi.science/1063-7826/article/view/200301
- DOI: https://doi.org/10.1134/S1063782617070363
- ID: 200301
Cite item
Abstract
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.
About the authors
A. I. Voronin
National University of Science and Technology “MISiS”; National Research South Ural State University, Ural Branch
Author for correspondence.
Email: voronin@misis.ru
Russian Federation, Moscow, 119049; Chelyabinsk, 454080
V. Yu. Zueva
National University of Science and Technology “MISiS”
Email: voronin@misis.ru
Russian Federation, Moscow, 119049
D. Yu. Karpenkov
National University of Science and Technology “MISiS”
Email: voronin@misis.ru
Russian Federation, Moscow, 119049
D. O. Moskovskikh
National University of Science and Technology “MISiS”
Email: voronin@misis.ru
Russian Federation, Moscow, 119049
A. P. Novitskii
National University of Science and Technology “MISiS”
Email: voronin@misis.ru
Russian Federation, Moscow, 119049
H. Miki
Frontier Research Institute for Interdisciplinary Science
Email: voronin@misis.ru
Japan, Sendai, 980-8578
V. V. Khovaylo
National University of Science and Technology “MISiS”
Email: voronin@misis.ru
Russian Federation, Moscow, 119049