Mechanical properties of Bi2Te2.8Se0.2 and Bi0.5Sb1.5Te3 obtained by SPS

Дата публикации: 29.03.2023

Mechanical properties of Bi2Te2.8Se0.2 and Bi0.5Sb1.5Te3 obtained by SPS

Pepelyaev D.
Yakubov A.
Sherchenkov A.
Shtern M.
Shtern Yu.
Rogachev M.
Аннотация: Bulk nanostructured materials Bi2Te2.8Se0.2+0.11% Bi11Se12Cl9 (n-type) and Bi0.5Sb1.5Te3+3% Te+0.09% Pb (p-type) were fabricated from ground in a planetary ball mill synthesized materials followed by compacting using the spark plasma sintering method. As can be seen from the results, samples made with a long grinding time have higher values of hardness and Young's modulus. At the same time, nanostructured thermoelectric (TE) materials have noticeably higher mechanical properties than TE materials fabricated by the traditional method. The results obtained are of great importance for the practical use of nanostructured TE materials and the production of thermoelement legs from them.
Ключевые слова: nanostructured thermoelectric materials, SPS, mechanical properties
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