Evaluation of the Thermoelectric Module Consisting of W-Doped Heusler Fe2VAl Alloy

被引：20

作者：

Mikami, M. ^{[1
]}

Mizoshiri, M. ^{[1
]}

Ozaki, K. ^{[1
]}

Takazawa, H. ^{[2
]}

Yamamoto, A. ^{[2
]}

Terazawa, Y. ^{[3
]}

Takeuchi, T. ^{[3
]}

机构：

[1] Natl Inst Adv Ind Sci & Technol, Nagoya, Aichi 4638560, Japan

[2] Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3058568, Japan

[3] Nagoya Univ, Dept Appl Phys, Nagoya, Aichi 4648603, Japan

来源：

JOURNAL OF ELECTRONIC MATERIALS | 2014年 / 43卷 / 06期

关键词：

Thermoelectric module; Heusler alloy; powder metallurgy; power generation; SUBSTITUTION;

D O I：

10.1007/s11664-013-2910-7

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Power generation performance of a thermoelectric module consisting of the Heusler Fe2VAl alloy was evaluated. For construction of the module, W-doped Fe2VAl alloys were prepared using powder metallurgy process. Power generation tests of the module consisting of 18 pairs of p-n junctions were conducted on a heat source of 373-673 K in vacuum. The reduction of thermal conductivity and improvement of thermoelectric figure of merit by W-doping enhanced the conversion efficiency and the output power. High output power density of 0.7 W/cm(2) was obtained by virtue of the high thermoelectric power factor of the Heusler alloy. The module exhibited good durability, and the relatively high output power was maintained after temperature cycling test in air.

引用

页码：1922 / 1926

页数：5

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