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Development of a Thermoelectric Module Using the Heusler Alloy Fe2VAl

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A thermoelectric module was constructed using a Heusler Fe2VAl sintered alloy prepared by pulse-current sintering (PCS) using mechanically alloyed powder. A large-amplitude vibration mill was developed for powder preparation. The processing rate was increased 50-fold over that of laboratory planetary ball milling. In all, 25 pieces of millimeter-sized sintered alloy, which is useful for thermoelectric devices without cutting, were fabricated simultaneously using a single PCS process. The thermoelectric module consisting of the high-strength sintered alloy and electrode joint showed high durability. This module stably generated electric power on the exhaust pipe of a running motorcycle.

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Acknowledgements

We appreciate Professor Y. Nishino and N. Ide for fruitful discussions and valuable comments. We also thank K. Kikuchi and H. Kikuchi for preparing the sintered alloy. This work was partly supported by the Regional R&D Consortium Project.

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Authors and Affiliations

  1. National Institute of Advanced Industrial Science and Technology, Nagoya, 463-8560, Japan

    M. Mikami & K. Kobayashi

  2. Atsumitec Co., Ltd., Hamamatsu, 431-0192, Japan

    T. Kawada, K. Kubo & N. Uchiyama

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  1. M. Mikami
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  2. K. Kobayashi
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  3. T. Kawada
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  4. K. Kubo
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  5. N. Uchiyama
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Correspondence to M. Mikami.

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Mikami, M., Kobayashi, K., Kawada, T. et al. Development of a Thermoelectric Module Using the Heusler Alloy Fe2VAl. J. Electron. Mater. 38, 1121–1126 (2009). https://doi.org/10.1007/s11664-009-0724-4

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  • DOI: https://doi.org/10.1007/s11664-009-0724-4

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