Work

Structure of a Spark Plasma Sintering Synthesized (Bi,Sb)2Te3 Based Bulk Thermoelectric Material

Year: 2015

Type: article

Abstract: Bulk nanostructured BixSb1−xTe3 based material was fabricated with spark plasma sintering (SPS) method. The starting powders with a particle size of 10—12 nm were prepared by ball milling. The regularity of fine structure changes as a function of sintering temperature in the 250—550 °C range was investigated by X−ray diffractometry, scanning and transmission electron microscopy (TEM, HRTEM). For the first time coherent dispersion areas (CDA) size was found not to increase monotonously with sintering temperature, and at temperatures of above 400 °C the CDA size decreased as a result of repeated recrystallization. Apparently, the structural changes are associated with a redistribution of intrinsic vacancy type structural defects during sintering.

Source: Izvestiya Vysshikh Uchebnykh Zavedenii Materialy Elektronnoi Tekhniki = Materials of Electronics Engineering

DOI: 10.17073/1609-3577-2012-3-10-17

Authors: V. T. Bublik, I. A. Drabkin, V. V. Karataev, M. G. Lavrent’ev, V. B. Osvensky, Yu. N. Parkhomenko, G. I. Pivovarov, A. I. Sorokin, N. Yu. Tabachkova

Institutions: National University of Science and Technology, Giredmet (Russia), Technological Institute for Superhard and Novel Carbon Materials

Language: English

Topic: Advanced Thermoelectric Materials and Devices

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: hybrid

OpenAlex ID: W2292662786

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Cites: 6

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