Thermoelectric properties of SiC nanocomposite Mg2Si0.4Sn0.6 with Sb doping prepared by vacuum induction levitation melting and spark plasma sintering

被引：8

作者：

Liu, Hongliang ^{[1
,2
]}

Guo, Zhiying ^{[1
]}

Yuan, Xiaofeng ^{[1
]}

Zhu, Zunwei ^{[1
]}

Gao, Qianqian ^{[1
]}

Zhang, Xin ^{[2
]}

机构：

[1] Anyang Inst Technol, Sch Mat Sci & Engn, Anyang 455000, Peoples R China

[2] Beijing Univ Technol, Key Lab Adv Funct Mat, Educ Minist, Beijing 100124, Peoples R China

来源：

VACUUM | 2023年 / 213卷

关键词：

Mg2Si0.4Sn0.6; SiC; Hierarchical nanostructures; Thermoelectric; RECENT PROGRESS; SOLID-SOLUTIONS; PERFORMANCE; TRANSPORT; CRYSTALS;

D O I：

10.1016/j.vacuum.2023.112135

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The SiC nanocomposite Mg-2(Si0.4Sn0.6)Sb-0.015/(y)SiC (0 <= y <= 0.01) with Sb doping were prepared using the vacuum induction levitation melting technique in conjunction with mechanical alloying and spark plasma sintering process. The microstructure and thermoelectric properties were systematically investigated. The hierarchical nanostructures for the samples are composed of point defects, SiC nanocomposite particles, coherent in-situ nanophases, and grains. The SiC nanocomposite cause a minor reduction in electrical performance, and the constructed hierarchical nanostructures significantly decreased the lattice thermal conductivities. The highest figure of merit value of 1.55 is obtained at 643 K for the y = 0.0075 SiC nanocomposite sample.

引用

页数：8

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