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Microstructures and Thermoelectric Properties of Sintered Ca3Co4O9-Based Oxide
http://hdl.handle.net/10069/30200
http://hdl.handle.net/10069/30200776ff528-2d37-4077-a36a-24164e601770
名前 / ファイル | ライセンス | アクション |
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JEM41_1217.pdf (2.0 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2013-01-09 | |||||
タイトル | ||||||
タイトル | Microstructures and Thermoelectric Properties of Sintered Ca3Co4O9-Based Oxide | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | dimensionless figure of merit | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Harman method | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | high-resolution TEM | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Seebeck coefficient | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | XRD-Rietveld method | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者 |
Morimura, Takao
× Morimura, Takao× Hasaka, Masayuki× Kondo, Shin-ichiro× Nakashima, Hiromichi× Maeda, Hisamitsu |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Zn- and Ti-doped thermoelectric misfit cobalt oxides Ca 3Co 4-x-y Zn x Ti y O 9 (x = 0 to 0.5, y = 0 to 0.5) were prepared by solid-phase reaction, followed by uniaxial compression molding and sintering at 1173 K for 20 h. Powder x-ray diffraction (XRD) data suggest that Zn and Ti dopants substitute in the rocksalt layer rather than in the CoO 2 layer for x ≤ 0.1 and y ≤ 0.1, respectively. In Zn and Ti single-doped samples for x ≤ 0.1 and y ≤ 0.1, ZT at room temperature increased with x and y through an increase in the absolute Seebeck coefficient despite a decrease in electrical conductivity. In Zn and Ti double-doped samples, minor phases other than the misfit oxides were observed at approximately x + y ≥ 0.1. At x ≤ 0.1 and y ≤ 0.1, double doping improved the thermoelectric properties. ZT at room temperature reached a maximum value of 0.035 at (x, y) = (0.1, 0.03). | |||||
書誌情報 |
Journal of Electronic Materials 巻 41, 号 6, p. 1217-1221, 発行日 2012-06 |
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出版者 | ||||||
出版者 | Springer New York | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 03615235 | |||||
EISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1543186X | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1007/s11664-012-1929-5 | |||||
権利 | ||||||
権利情報 | © 2012 TMS. | |||||
権利 | ||||||
権利情報 | The final publication is available at www.springerlink.com. | |||||
著者版フラグ | ||||||
出版タイプ | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
引用 | ||||||
内容記述タイプ | Other | |||||
内容記述 | Journal of Electronic Materials, 41(6), pp.1217-1221; 2012 |