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Thermoelectric Properties of Texture-Controlled (GeTe) (x)(AgSbTe2)(100-x) (x=75, 80, 85, and 90) Alloys Fabricated by Gas-Atomization and Hot-Extrusion Processes

TitleThermoelectric Properties of Texture-Controlled (GeTe) (x)(AgSbTe2)(100-x) (x=75, 80, 85, and 90) Alloys Fabricated by Gas-Atomization and Hot-Extrusion Processes
Publication TypeJournal Article
Year of Publication2018
AuthorsKim, HS, Dharmaiah, P, Hong, SJ
JournalJournal of Electronic Materials
Volume47
Pagination3119-3126
Date Published06
Type of ArticleArticle; Proceedings Paper
ISBN Number0361-5235
Accession NumberWOS:000431920400009
Keywordsbi2te3, compound, Engineering, enhancement, Gas atomization, hardness, hot extrusion, Materials Science, Mechanical properties, Microstructure, performance bulk thermoelectrics, physics, power-factor, TAGS, thermoelectric properties, transport-properties
Abstract

99%), and a significant orientation degree parallel to the extrusion direction with fine and homogeneous microstructure was observed. The hardness of extruded samples was around 200-260 kgf/mm(2), which indicates that they have much better mechanical properties than most other TE materials. The power factor of the extruded samples showed excellent values; the maximum power factor achieved was 3.81 x 10(-3) W/mK(2) for TAGS-90 at 723 K due to an effective combination of the Seebeck coefficient and electrical conductivity.

DOI10.1007/s11664-017-5961-3
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