Extruded thermoelectric material based on solid solution bi2te2.7se0.3
International Journal on Technical and Physical Problems of Engineering, vol.13, no.2, pp.87-93, 2021 (Scopus)
- Publication Type: Article / Article
- Volume: 13 Issue: 2
- Publication Date: 2021
- Journal Name: International Journal on Technical and Physical Problems of Engineering
- Journal Indexes: Scopus
- Page Numbers: pp.87-93
- Keywords: Deformation, Extruded, Hall coefficient, Size, Zeebeck
- Open Archive Collection: Article
- Azerbaijan State University of Economics (UNEC) Affiliated: Yes
Abstract
The electrical conductivity ( σ ), Zeebeck ( α ), Hall (Rh) and thermal conductivity ( x ) coefficients of the extruded sample of Bi2Te2.7Se0.3 with different grain sizes are investigated in the temperature range of ~77-300 K after extrusion and the same samples passed annealing. It is established that when extruding samples of solid solution axial texture in the direction of the extrusion axis arises in them due to plastic deformation. There is a correlation between the degree of texture and the thermoelectric properties. Bi Te Se 2 2.7 0.3.