Improved mechanical properties of thermoelectric (Bi0.2Sb0.8)2Te3 by nanostructuring

M. G. Lavrentev; V. B. Osvenskii; Yu N. Parkhomenko; G. I. Pivovarov; A. I. Sorokin; L. P. Bulat; H. S. Kim; I. T. Witting; G. J. Snyder; V. T. Bublik; N. Yu Tabachkova

doi:10.1063/1.4953173

Improved mechanical properties of thermoelectric (Bi_0.2Sb_0.8)₂Te₃ by nanostructuring

M. G. Lavrentev
, V. B. Osvenskii
, Yu N. Parkhomenko
, G. I. Pivovarov
, A. I. Sorokin
, L. P. Bulat
, H. S. Kim
, I. T. Witting
, G. J. Snyder
, V. T. Bublik
, N. Yu Tabachkova

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

29 Scopus citations

Abstract

Temperature-dependent strength of Bi-Sb-Te under uniaxial compression is investigated. Bi-Sb-Te samples were produced by three methods: vertical zone-melting, hot extrusion, and spark plasma sintering (SPS). For zone-melted and extruded samples, the brittle-ductile transition occurs over a temperature range of 200-350 °C. In nanostructured samples produced via SPS, the transition is observed in a narrower temperature range of 170-200 °C. At room temperature, the strength of the nanostructured samples is higher than that of zone-melted and extruded samples, but above 300 °C, all samples decrease to roughly the same strength.

Original language	English
Article number	104807
Journal	APL Materials
Volume	4
Issue number	10
DOIs	https://doi.org/10.1063/1.4953173
State	Published - 1 Oct 2016

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title = "Improved mechanical properties of thermoelectric (Bi0.2Sb0.8)2Te3 by nanostructuring",

abstract = "Temperature-dependent strength of Bi-Sb-Te under uniaxial compression is investigated. Bi-Sb-Te samples were produced by three methods: vertical zone-melting, hot extrusion, and spark plasma sintering (SPS). For zone-melted and extruded samples, the brittle-ductile transition occurs over a temperature range of 200-350 °C. In nanostructured samples produced via SPS, the transition is observed in a narrower temperature range of 170-200 °C. At room temperature, the strength of the nanostructured samples is higher than that of zone-melted and extruded samples, but above 300 °C, all samples decrease to roughly the same strength.",

author = "Lavrentev, \{M. G.\} and Osvenskii, \{V. B.\} and Parkhomenko, \{Yu N.\} and Pivovarov, \{G. I.\} and Sorokin, \{A. I.\} and Bulat, \{L. P.\} and Kim, \{H. S.\} and Witting, \{I. T.\} and Snyder, \{G. J.\} and Bublik, \{V. T.\} and Tabachkova, \{N. Yu\}",

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year = "2016",

month = oct,

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doi = "10.1063/1.4953173",

language = "English",

volume = "4",

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TY - JOUR

T1 - Improved mechanical properties of thermoelectric (Bi0.2Sb0.8)2Te3 by nanostructuring

AU - Lavrentev, M. G.

AU - Osvenskii, V. B.

AU - Parkhomenko, Yu N.

AU - Pivovarov, G. I.

AU - Sorokin, A. I.

AU - Bulat, L. P.

AU - Kim, H. S.

AU - Witting, I. T.

AU - Snyder, G. J.

AU - Bublik, V. T.

AU - Tabachkova, N. Yu

PY - 2016/10/1

Y1 - 2016/10/1

N2 - Temperature-dependent strength of Bi-Sb-Te under uniaxial compression is investigated. Bi-Sb-Te samples were produced by three methods: vertical zone-melting, hot extrusion, and spark plasma sintering (SPS). For zone-melted and extruded samples, the brittle-ductile transition occurs over a temperature range of 200-350 °C. In nanostructured samples produced via SPS, the transition is observed in a narrower temperature range of 170-200 °C. At room temperature, the strength of the nanostructured samples is higher than that of zone-melted and extruded samples, but above 300 °C, all samples decrease to roughly the same strength.

AB - Temperature-dependent strength of Bi-Sb-Te under uniaxial compression is investigated. Bi-Sb-Te samples were produced by three methods: vertical zone-melting, hot extrusion, and spark plasma sintering (SPS). For zone-melted and extruded samples, the brittle-ductile transition occurs over a temperature range of 200-350 °C. In nanostructured samples produced via SPS, the transition is observed in a narrower temperature range of 170-200 °C. At room temperature, the strength of the nanostructured samples is higher than that of zone-melted and extruded samples, but above 300 °C, all samples decrease to roughly the same strength.

UR - https://www.scopus.com/pages/publications/84977106565

U2 - 10.1063/1.4953173

DO - 10.1063/1.4953173

M3 - Article

AN - SCOPUS:84977106565

SN - 2166-532X

VL - 4

JO - APL Materials

JF - APL Materials

IS - 10

M1 - 104807

ER -

Improved mechanical properties of thermoelectric (Bi_0.2Sb_0.8)₂Te₃ by nanostructuring

Abstract

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