T. Tamegai
;
R. Sakagami
;
T. Ito
;
K Takinoiri
;
A. Kikuchi
;
M. Yamamoto
説明:
(abstract)In the present study, critical current density (Jc) characteristics and uniformity of (Ba,Na)Fe2As2 wires and tapes fabricated by different methods and sheath materials are compared. Impurity-free high-quality polycrystalline powders were prepared by two different methods; direct reaction method and precursor method. By optimizing the firing temperature and holding time of precursors, we have succeeded in obtaining high quality precursor powders. In the case of wire drawing, a rotary swager with an automatic wire feeder is used to prevent sausaging. To further deform it into a tape form, cold press was used. In addition to the Jc characteristics of (Ba,Na)Fe2As2 wire and tapes, X-ray characterizations for the evaluation of texturing
and uniformity are presented. Finally, a fine and long (Ba,Na)Fe2As2 wire is fabricated using Monel as an outer sheath material, and its characteristics are presented.
権利情報:
キーワード: Critical current density, iron-based super conductors, wires and tapes, (Ba,Na)Fe2As2
刊行年月日: 2024-12-11
出版者: Institute of Electrical and Electronics Engineers (IEEE)
掲載誌:
研究助成金:
原稿種別: 著者最終稿 (Accepted manuscript)
MDR DOI: https://doi.org/10.48505/nims.5592
公開URL: https://doi.org/10.1109/tasc.2024.3513284
関連資料:
その他の識別子:
連絡先:
更新時刻: 2025-07-16 16:30:21 +0900
MDRでの公開時刻: 2025-07-16 16:18:19 +0900
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ASC2024_Tamegai.pdf
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