Electromechanical properties of iron and silver sheathed Sr0.6K0.4Fe2As2 tapes
Electromechanical properties of iron and silver sheathed Sr0.6K0.4Fe2As2 tapes
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DOI：
10.1088/0953-2048/28/3/035007
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发表时间：
2015-01
影响因子：
3.6
通讯作者：
P. Kováč;Ľ. Kopera;T. Melíšek;M. Kulich;I. Hušek;H. Lin;C. Yao;X. Zhang;Y. Ma
中科院分区：
文献类型：
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作者：
P. Kováč;Ľ. Kopera;T. Melíšek;M. Kulich;I. Hušek;H. Lin;C. Yao;X. Zhang;Y. Ma
本文描述了铁和银包套的非原位Sr0.6Ka0.4Fe2As2(SR-122)带状超导体的机电行为。在5-6T的外场作用下，在4.2K的轴向拉伸下，对自支撑的锶-122带材进行了应力测试，并同时测量了临界电流。通过将两个40μm的不锈钢带简单地焊接到带的两侧，进行了机械增强锶-122/银的尝试。将所得结果与MgB_2/Fe复合材料的机电性能进行了比较。文中还讨论了锶-122/铁和锶-122/银在强场应用中的机械极限。
This work describes the electromechanical behaviour of iron- and silver-sheathed ex situ Sr0.6Ka0.4Fe2As2 (Sr-122) tape superconductors. Free-standing Sr-122 tapes were stressed by axial tension at 4.2 K under external fields at 5–6 T, and critical currents have been simultaneously measured. An attempt to reinforce Sr-122/Ag mechanically was done by simple soldering of two stainless steel strips of 40 μm to both sides of the tape. The obtained results are compared with the electromechanical property of MgB2/Fe. The mechanical limits of Sr-122/Fe and Sr-122/Ag regarding possible high field applications are also discussed.