| Project/Area Number |
26289246
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Composite materials/Surface and interface engineering
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| Research Institution | Ibaraki University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
鵜殿 治彦 茨城大学, 工学部, 助教授 (10282279)
太田 弘道 茨城大学, 工学部, 教授 (70168946)
永野 隆敏 茨城大学, 工学部, 講師 (70343621)
篠嶋 妥 茨城大学, 工学部, 教授 (80187137)
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| Project Period (FY) |
2014-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥17,030,000 (Direct Cost: ¥13,100,000、Indirect Cost: ¥3,930,000)
Fiscal Year 2016: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2015: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2014: ¥14,950,000 (Direct Cost: ¥11,500,000、Indirect Cost: ¥3,450,000)
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| Keywords | 熱電特性 / ナノ構造 / 相変態 / 状態図 / 熱伝導率 / ギブス-トムソン効果 / 固溶度 / 複合組織 / 熱電変換材料 / 組織制御 / キャリア密度 / フォノン散乱 / ボールミル / 熱電変換 / ナノ材料 / ナノ構造化熱電材料 / バンド構造 |
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| Outline of Final Research Achievements |
In this research, we searched novel strategies to improve thermoelectric properties via functions of nanostructuring thermoelectric materials which are abundant on the earth and environmentally friendly. Achievements of this project are as follows: 1) enhancement of carrier concentration from the Gibbs-Thomson effect by dispersion of nanoprecipitates in Si, 2) development of novel low temperature synthesis method for Mg2Si, 3) clarification of the condition for the formation of Si precipitates in plate shape in Mg2Si, and 4) development of an efficient method to study the relation among chemical composition-microstructure-thermoelectric properties.
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