Thermoelectric properties of half-Heusler high-entropy Ti2NiCoSn1-xSb1+ (x = 0.5, 1) alloys with VEC>18 - Université de Lille Accéder directement au contenu
Article Dans Une Revue Scripta Materialia Année : 2020

Thermoelectric properties of half-Heusler high-entropy Ti2NiCoSn1-xSb1+ (x = 0.5, 1) alloys with VEC>18

Résumé

A new set of half-Heusler high-entropy alloys Ti2NiCoSn1-xSb1+x (x = 0.5, 1), with a valence electron count higher than 18, were investigated for thermoelectric applications. Vacuum arc melting was employed for synthesis. Atom probe analysis confirmed single-phase at atomic level. The alloys were subsequently ball milled for 1 h followed by spark plasma sintering for consolidation. In 1 h BM cases, the alloy with x = 0.5 exhibited a low lattice thermal conductivity of 2.48 Wm−1K−1, and a ZT of 0.29 at 873 K.

Domaines

Matériaux

Dates et versions

hal-04414339 , version 1 (24-01-2024)

Identifiants

Citer

Anirudha Karati, V.S. Hariharan, Sanyukta Ghosh, Anil Prasad, M. Nagini, et al.. Thermoelectric properties of half-Heusler high-entropy Ti2NiCoSn1-xSb1+ (x = 0.5, 1) alloys with VEC>18. Scripta Materialia, 2020, Scripta Materialia, pp.375-380. ⟨10.1016/j.scriptamat.2020.04.036⟩. ⟨hal-04414339⟩
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