Influence of MnTe inclusions on thermoelectric properties of Fe2TiSn

被引：0

作者：

Scherbakova, Kseniia ^{[1
]}

Khanina, Aleksandra ^{[1
]}

Novitskii, Andrei ^{[1
,2
]}

Serhiienko, Illia ^{[2
,3
]}

Shubin, Aleksandr ^{[1
]}

Ivanov, Oleg ^{[1
,4
]}

Repnikov, Nikolay ^{[4
]}

Khovaylo, Vladimir ^{[1
]}

机构：

[1] Natl Univ Sci & Technol MISIS, Moscow 119049, Russia

[2] Natl Inst Mat Sci, Int Ctr Mat Nanoarchitecton WPI MANA, Tsukuba, Ibaraki 3050044, Japan

[3] Univ Tsukuba, Grad Sch Pure & Appl Sci, Tsukuba, Ibaraki 3058573, Japan

[4] Belgorod State Univ, Belgorod 308015, Russia

来源：

MRS ADVANCES | 2023年 / 8卷 / 12期

基金：

俄罗斯科学基金会;

关键词：

HIGH FIGURE; PERFORMANCE;

D O I：

10.1557/s43580-023-00581-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Thermoelectric properties of composites consisting of antiferromagnetic MnTe as inclusion and Fe2TiSn Heusler alloy as a thermoelectric matrix were studied. Samples of Fe2TiSn + xMnTe (x = 0, 2, 4, and 6 wt.%) were obtained by mixing Fe2TiSn and MnTe powders in planetary mill and subsequent consolidation by Spark Plasma Sintering. Measurements of thermoelectric properties revealed a decrease of thermal conductivity with an increase in the mass fraction of MnTe in the studied composites, which was ascribed to the enhanced phonon scattering at the matrix/inclusion interfaces. However, due to the decrease in the electrical conductivity and the Seebeck coefficient, the thermoelectric figure of merit ZT is significantly reduced in the studied composites.

引用

页码：693 / 697

页数：5

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