Analysis of Anisotropy of Properties on the Basis of Studies of Texture of Coarse-Grained Ingots of Thermoelectric Materials

摘要

An analysis of anisotropy of the properties of a Bi_2Se_(0.3)Te_(2.7) solid solution was carried out using construction of demonstrative surfaces for thermoelectric effectiveness and thermal expansion coefficients. It is shown that the texture is an important factor forming anisotropy of properties and technological fitness of ingots for manufacturing modules. Anisotropy of properties based on the studies of the ingot textures obtained using the float-zone method and Bridgman method (growing thermoelectric plates in a flat cavity) was studied.