書誌事項
- タイトル別名
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- Electronic Structure and Thermoelectric Properties of Pseudogap Intermetallic Compound Al<sub>5</sub>Co<sub>2</sub>
- 擬ギャップ系材料Al₅Co₂の電子構造および熱電特性
- ギギャップケイ ザイリョウ Al ₅ Co ₂ ノ デンシ コウゾウ オヨビ ネツデントクセイ
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抄録
<p>Thermoelectric(TE) power generation can directly convert waste heat into electric energy. However, one of the bottlenecks for widespread use of TE power generation is toxicity of currently-used TE materials. We focused on Al-based materials as candidate of low-toxicity TE materials. Although Al-based materials have high power factor, the achievement of high TE performance is difficult because of the high lattice thermal conductivity. The aims of the present study are to synthesize Al5Co2 known as a pseudogap intermetallic compound, and to investigate the TE properties. We found that lattice thermal conductivity κlat of Al5Co2 is lower than those of other Al based TE materials, such as Fe2VAl, Al2Ru and Al3V. The κlat of Al5Co2 at room temperature was 7.1 Wm-1K-1. We also found that Fe substitution at Co sites enhances power factor(PF). The maximum PF was ~0.6 mWm-1K-2 at room temperature for Al5(Co0.95Fe0.05)2.</p>
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 81 (2), 55-59, 2017
公益社団法人 日本金属学会
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詳細情報 詳細情報について
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- CRID
- 1390282681458377984
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- NII論文ID
- 130005296414
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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
- 027868442
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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
- Crossref
- CiNii Articles
- KAKEN
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- 抄録ライセンスフラグ
- 使用不可