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Fabrication and evaluation of a skutterudite-based thermoelectric module for high-temperature applications

Garcia Canadas, Jorge, Powell, Anthony V., Kaltzoglou, Andreas, Vaqueiro, Paz and Min, Gao 2013. Fabrication and evaluation of a skutterudite-based thermoelectric module for high-temperature applications. Journal of Electronic Materials 42 (7) , pp. 1369-1374. 10.1007/s11664-012-2241-0

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Abstract

We report a straightforward methodology for the fabrication of high-temperature thermoelectric (TE) modules using commercially available solder alloys and metal barriers. This methodology employs standard and accessible facilities that are simple to implement in any laboratory. A TE module formed by nine n-type Yb x Co4Sb12 and p-type Ce x Fe3CoSb12 state-of-the-art skutterudite material couples was fabricated. The physical properties of the synthesized skutterudites were determined, and the module power output, internal resistance, and thermocycling stability were evaluated in air. At a temperature difference of 365 K, the module provides more than 1.5 W cm−3 volume power density. However, thermocycling showed an increase of the internal module resistance and degradation in performance with the number of cycles when the device is operated at a hot-side temperature higher than 573 K. This may be attributed to oxidation of the skutterudite thermoelements.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Engineering
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Uncontrolled Keywords: Thermoelectric generator; skutterudites; manufacturing; electrical contact resistivity; power output; device fabrication
Publisher: Springer
ISSN: 0361-5235
Last Modified: 04 Jun 2017 04:50
URI: https://orca.cardiff.ac.uk/id/eprint/45594

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