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Progress in Reducing AC Losses of Bi2223 Tapes with Interfilamentary Resistive Barriers
https://repo.lib.tut.ac.jp/records/1557
https://repo.lib.tut.ac.jp/records/155716cf3dde-8caf-4ada-a6c2-dde02b7c3127
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
I10518223-0021-2779 (867.3 kB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
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| 公開日 | 2014-10-29 | |||||
| タイトル | ||||||
| タイトル | Progress in Reducing AC Losses of Bi2223 Tapes with Interfilamentary Resistive Barriers | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 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 |
稲田, 亮史
× 稲田, 亮史× 奥村, 康裕× 太田, 昭男× 李, 成山× 張, 平祥× Inada, Ryoji× Okumura, Yasuhiro× Oota, Akio× Li, Chengshan× Zhang, Pingxiang |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | This paper presents our recent progress for the development of low-AC loss Bi2223 tapes with interfilamentary oxide barriers. For the compatibility with Bi2223 phase formation during sintering, SrZrO3 was selected as barrier materials. Moreover, small amount of Bi2212 was mixed with SrZrO3 to improve its ductility for cold working. Although some breakages of barrier layers still existed, the effective transverse resistivity was approximately 10 times higher than a tape with pure Ag matrix. By controlling barrier thickness, reducing a tape width below 3 mm and twisting the filaments with its length below 5 mm, coupling frequency fc attained to 260 Hz in an AC perpendicular transverse field. Critical current densities Jc of our twisted barrier tapes were ranged in 12−15 kA/cm2 at 77 K and self-field, which was 25−30 % lower than non-twisted one (= 18 kA/cm2). In our knowledge, this is the first report to achieve both Jc > 12 kA/cm2 and fc > 250 Hz simultaneously in a single Bi2223 tapes. Our barrier tapes showed 60-70% lower perpendicular field losses than a conventional 4 mm-width tape with fully coupled filaments at 50 mT and 50 Hz. These results are promising for remarkable improvement in AC performance for Bi2223 tapes in future. |
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| 書誌情報 |
IEEE Transactions on Applied Superconductivity 巻 21, 号 3, p. 2779-2782, 発行日 2011-06 |
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| 出版者 | ||||||
| 出版者 | IEEE | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 1051-8223 | |||||
| DOI | ||||||
| 関連タイプ | isVersionOf | |||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1109/TASC.2010.2078433 | |||||
| 権利 | ||||||
| 権利情報 | This is the author's version of the work. Copyright (C) 2011 IEEE. IEEE Transactions on Applied Superconductivity, vol.21, no.3, Pages 2779-2782. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5617306 | |||||
| 関連名称 | IEEExplore | |||||
| 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 | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Bi2223 tapes | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | interfilamentary barriers | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | AC loss | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | filament twisting | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | coupling frequency | |||||
