Ultra-fast fabrication of bulk ZrNiSn thermoelectric material through self-propagating high-temperature synthesis combined with in-situ quick pressing

被引：12

作者：

Hu, Tiezheng ^{[1
]}

Cao, Weiqiang ^{[2
]}

Yang, Dongwang ^{[1
]}

Yan, Yonggao ^{[1
]}

Cao, Yu ^{[1
]}

Zhang, Tingting ^{[1
]}

Su, Xianli ^{[1
]}

Liu, Wei ^{[1
]}

Poudeu-Poudeu, Pierre ^{[3
]}

Tang, Xinfeng ^{[1
]}

机构：

[1] Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Hubei, Peoples R China

[2] Guangdong Fuxin Technol Co Ltd, Shunde 528306, Guangdong, Peoples R China

[3] Univ Michigan, Dept Mat Sci & Engn, LE3M, Ann Arbor, MI 48109 USA

来源：

SCRIPTA MATERIALIA | 2019年 / 165卷

基金：

中国国家自然科学基金;

关键词：

Thermoelectric materials; SHS; Half-Heusler; HALF-HEUSLER; RECENT PROGRESS; DENSIFICATION; PERFORMANCE;

D O I：

10.1016/j.scriptamat.2019.02.031

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The conventional fabrication of bulk thermoelectric materials usually involves time and energy consuming steps including melting, annealing and sintering et al, which restricts the large-scale application. Herein, high thermoelectric performance ZrNiSn bulks were synthesized by one step self-propagating high-temperature synthesis combining with in-situ quick pressing (SHS-QP). The correlation among SHS process, QP process and the critical pressure, is systematically investigated. The reduced grain size due to non-equilibrium feature of SHS-QP leads to a significant reduction in the thermal conductivity and a high figure of merit ZT similar to 0.7. (C) 2019 Published by Elsevier Ltd on behalf of Acta Materialia Inc.

引用

页码：140 / 144

页数：5

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