Synthesis, microstructure, and thermoelectric properties of Sb-Based high entropy alloys

In this paper, we explore the synthesis of new antimonide compounds based upon concepts of high entropy alloys (HEA). HEAs are usually multi-element (≳5) alloys with near the equiatomic composition. They have been given very large attention due to their vast potential within many fields. We investig...

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Bibliographic Details
Published in:Intermetallics 2022-04, Vol.143, p.107495, Article 107495
Main Authors: Rahman, Jamil Ur, Carvalho, Patricia Almeida, Soltani, Nayereh, Schrade, Matthias, Gunnaes, Anette Eleonora, Finstad, Terje G.
Format: Article
Language:English
Subjects:
Alloying elements
Antimony
Electrical properties
Electrical resistivity
Entropy
High entropy alloys
Intermetallics
Lattice thermal conductivity
Sb-Based high entropy alloys
Seebeck effect
Synthesis
Thermal conductivity
Thermoelectric materials
Thermoelectricity
Transport properties
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Summary:In this paper, we explore the synthesis of new antimonide compounds based upon concepts of high entropy alloys (HEA). HEAs are usually multi-element (≳5) alloys with near the equiatomic composition. They have been given very large attention due to their vast potential within many fields. We investigated the thermoelectric transport properties of antimony-based high entropy alloys. The observed electrical conductivity, Seebeck coefficient, and thermal conductivity were comparable to those of cutting-edge half-Heusler thermoelectric alloys. Alloys with different valence electron counts (VEC) were synthesized and correlated with measured electrical properties. ➢Prepared new antimonide compounds based on the concepts of high entropy alloys (HEA)➢A suitable method to prepare new compounds➢The role of valance electron counts (VEC) in high entropy alloys for thermoelectric applications
ISSN:0966-9795
1879-0216
DOI:10.1016/j.intermet.2022.107495