Influence of Extrusion Temperature on the Formation of a Bi 0.5 Sb 1.5 Te 3  Structure of  p -Type Conductivity

I. V. Tarasova; V. T. Bublik

doi:10.1134/S1063739717080145

Influence of Extrusion Temperature on the Formation of a Bi_0.5Sb_1.5Te₃ Structure of p-Type Conductivity

Authors: Tarasova I.V.¹, Bublik V.T.¹
Affiliations:
1. National University of Science and Technology MISiS
Issue: Vol 46, No 8 (2017)
Pages: 540-544
Section: Article
URL: https://journals.rcsi.science/1063-7397/article/view/186715
DOI: https://doi.org/10.1134/S1063739717080145
ID: 186715

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Abstract
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Abstract

The influence of competing processes of deformation, return, and recrystallization on the structure and properties of thermoelectric materials extruded at different temperatures is investigated. X-ray diffraction analysis, Harman’s method of measuring thermoelectric properties, and hydrostatic weighing are applied. The nonmonotonic dependence of the texture, electrophysical properties, and density on the extrusion temperature is revealed. In order to achieve the best thermoelectric properties of the material, the optimal extrusion temperature is established to be 400°C.

Keywords

thermoelectric materials, extrusion, thermoelectric efficiency, recrystallization, X-ray diffraction

About the authors

I. V. Tarasova

National University of Science and Technology MISiS

Author for correspondence.
Email: isamofalova@bk.ru
Russian Federation, Moscow, 119049

V. T. Bublik