Anisotropy of electrical and thermal properties of samples of extruded specimens of Bi0.85Sb0.15 solid solution doped with tellurium for energy converters
Molecular Crystals and Liquid Crystals, vol.769, no.9-10, pp.927-940, 2025 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 769 Issue: 9-10
- Publication Date: 2025
- Doi Number: 10.1080/15421406.2025.2529021
- Journal Name: Molecular Crystals and Liquid Crystals
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Chemical Abstracts Core, Communication Abstracts, Compendex, INSPEC, Metadex, Civil Engineering Abstracts
- Page Numbers: pp.927-940
- Keywords: anisotropy, annealing, electrical conductivity, extrusion, impurity
- Open Archive Collection: Article
- Azerbaijan State University of Economics (UNEC) Affiliated: Yes
Abstract
The effects of tellurium impurities and heat treatment on the anisotropy of electrical and thermal properties of Bi0.85Sb0.15 solid solution in the ∼77 ÷ 300 K and magnetic field strength up to ∼74 × 104 A/m are investigated. The corresponding explanations of the observed results are given. in extruded samples of Bi0.85Sb0.15 with 0.001 at.% tellurium, the absolute values of the Seebeck coefficient α in the perpendicular direction of the extrusion axis are more sensitive to the magnetic field than in the parallel direction, and the anisotropy of the (Δα) at a magnetic field strength of H = 42 × 104 A/m reaches the value Δα = 80 µV/K at ∼77 K, which makes this composition promising for creating anisotropic thermoelements.