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Mechanochemical synthesis and thermoelectric properties of TiFe2Sn Heusler alloy.

Mechanochemical synthesis and thermoelectric properties of TiFe2Sn Heusler alloy.

Authors :
Novitskii, Andrei
Serhiienko, Illia
Nepapushev, Andrei
Ivanova, Alexandra
Sviridova, Tatyana
Moskovskikh, Dmitry
Voronin, Andrei
Miki, Hiroyuki
Khovaylo, Vladimir
Source :
Intermetallics. Jun2021, Vol. 133, pN.PAG-N.PAG. 1p.
Publication Year :
2021

Abstract

Heusler alloys have attracted much attention due to their low toxicity, mechanical and thermal stability, relative abundance, and potential for thermoelectric power generation. Herein, we demonstrate that TiFe 2 Sn full-Heusler alloy can be obtained by a mechanochemical synthesis of metal precursors followed by spark plasma sintering. It is shown that thus prepared samples exhibit the ordered structure (Heusler phase, MnCu 2 Al-type). The influence of processing parameters on microstructure, phase composition, and thermoelectric properties of TiFe 2 Sn is studied. The thermoelectric figure of merit of the sample fabricated under optimal mechanochemical processing parameters is comparable to that of TiFe 2 Sn synthesized using the conventional route. Thus, our results indicate that the mechanochemical synthesis is a facile, scalable, and cost-effective route for the preparation of TiFe 2 Sn Heusler alloys. • TiFe 2 Sn prepared by mechanochemical synthesis followed by spark plasma sintering. • Mechanochemical synthesis performed at room temperature. • Figure of merit similar to that of TiFe 2 Sn synthesized by a conventional path. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
09669795
Volume :
133
Database :
Academic Search Index
Journal :
Intermetallics
Publication Type :
Academic Journal
Accession number :
149804636
Full Text :
https://doi.org/10.1016/j.intermet.2021.107195