Comparison of Jc Characteristics Among (Ba,Na)Fe2As2 Wires and Tapes Fabricated by Different Methods

被引：0

作者：

Tamegai, T. ^{[1
]}

Sakagami, R. ^{[1
]}

Ito, T. ^{[1
]}

Takinoiri, K. ^{[1
]}

Kikuchi, A. ^{[2
]}

Yamamoto, M. ^{[3
]}

机构：

[1] Univ Tokyo, Dept Appl Phys, Bunkyo Ku, Tokyo 1138656, Japan

[2] Natl Inst Mat Sci, Tsukuba 3050028, Japan

[3] Japan Superconduct Applicat Dev Inc JSA, Chuo 4093842, Japan

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2025年 / 35卷 / 05期

关键词：

Wires; Hip; Powders; Superconducting wires; Superconductivity; Magnetic fields; Iron; Barium; Critical current density; X-ray diffraction; iron-based superconductors; wires and tapes; (Ba; Na)Fe2As2;

D O I：

10.1109/TASC.2024.3513284

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In the present study, critical current density (J(c)) 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 heat treatment 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. By using a roller, the wire was further deform into a tape form. In addition to the J(c) 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.

引用

页数：5

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