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- 西野 洋一
- 名古屋工業大学大学院工学研究科未来材料創成工学専攻
書誌事項
- タイトル別名
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- New Development of Thermoelectric Materials Based on Heusler Compounds
- ホイスラー カゴウブツ ネツデンザイリョウ ノ シン テンカイ
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抄録
The Heusler-type Fe2VAl-based compounds can be a possible candidate for new thermoelectric materials. A significant enhancement in the Seebeck coefficient with both positive and negative sign can be achieved not only by the Fe/V off-stoichiometry combined with doping but also by the V/Al off-stoichiometry even without doping. For the latter alloys, the peak temperature of the Seebeck coefficient increases up to 600 K, and the maximum power factor is 4.3×10−3 for p-type and 6.8×10−3 W/mK2 for n-type, both of which are higher than those of the half-Heusler compound ZrNiSn and Mg2Si compound. A large power factor is required for practical applications of automotive thermoelectric generators. The heavy element Ta doping for the V/Al off-stoichiometric alloys is effective in increasing the dimensionless figure of merit at around 500 K.<br>
収録刊行物
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- 日本金属学会誌
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日本金属学会誌 79 (11), 548-554, 2015
公益社団法人 日本金属学会
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詳細情報
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- CRID
- 1390282681458639872
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- NII論文ID
- 130005105612
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- NII書誌ID
- AN00187860
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- ISSN
- 18806880
- 24337501
- 00214876
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- NDL書誌ID
- 026843225
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
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- 使用不可