ID | 116402 |
著者 |
Asai, Jun
Tokushima University
Bumrungpon, Mongkol
Tokushima University
Tsubochi, Toshiya
Tokushima University
Kanaya, Takayuki
Tokushima University
Tachii, Masaya
Tokushima University
Maeda, Toshiki
Tokushima University
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キーワード | Hot pressing
Milling
Electrical properties
Thermal conductivity
Zirconia
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資料タイプ |
学術雑誌論文
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抄録 | As a thermoelectric material, Bi0.3Sb1.7Te3.0+x (x = 0‒0.05) was fabricated by mechanical alloying using yttria-stabilized zirconia (YSZ) ceramic balls and vessels, followed by hot pressing. The effects of the added tellurium on the thermoelectric properties of Bi0.3Sb1.7Te3.0 fabricated with YSZ milling media were investigated. All sintered samples were isotropic and showed p-type conduction. The tellurium solid-solubility limit for Bi0.3Sb1.7Te3.0 was determined to be x = 0.01 by differential thermal analysis (DTA). The solid-solubility limit of the sample fabricated using YSZ was narrower than that of the congener prepared with Si3N4 balls and stainless-steel metal vessels. Among the evaluated compositions, the Bi0.3Sb1.7Te3.01 sintered disk had the highest dimensionless figure of merit, ZT = 1.30, at room temperature. This value was superior to that of Bi0.3Sb1.7Te3.0+x fabricated using metal vessels. Thus, selection of the milling media affected the optimum doping amount and maximum ZT.
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掲載誌名 |
Journal of the European Ceramic Society
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ISSN | 09552219
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cat書誌ID | AA10737208
AA11533804
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出版者 | Elsevier
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巻 | 41
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号 | 16
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開始ページ | 188
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終了ページ | 194
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発行日 | 2021-09-10
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権利情報 | © 2021. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
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EDB ID | |
出版社版DOI | |
出版社版URL | |
フルテキストファイル | |
言語 |
eng
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著者版フラグ |
著者版
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部局 |
理工学系
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