Development of Nb/sub 3/Al superconducting wire for accelerator magnets
Development of Nb/sub 3/Al superconducting wire for accelerator magnets
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DOI：
10.1109/tasc.2004.830370
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发表时间：
2004-08
影响因子：
1.8
通讯作者：
T. Kobayashi;K. Tsuchiya;T. Shintomi;A. Terashima;N. Banno;S. Nimori;T. Takeuchi;K. Tagawa;G. Iwaki
中科院分区：
文献类型：
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作者：
T. Kobayashi;K. Tsuchiya;T. Shintomi;A. Terashima;N. Banno;S. Nimori;T. Takeuchi;K. Tagawa;G. Iwaki
与Nb/Sub3/Sn超导体相比，Nb/Sub3/Al超导体在快速加热/淬火过程中表现出了良好的性能。因此，我们启动了用于未来加速器磁体的Nb/Sub3/Al导体的研发计划。制备了直径约0.8 mm、长丝较小(/SPL sim/50微米直径)、基质比较低(/SPL sim/1.0)的几种试丝，并研究了快速淬火后的热处理和面积缩小条件。在本研究中，在10T和4.2K下获得的最大非铜J/subc/为1734A/mm/sup2/。
Nb/sub 3/Al superconductors have shown promising performance compared to Nb/sub 3/Sn conductors when processed by rapid heating/quenching process. Therefore we have started an R&D program of Nb/sub 3/Al conductors for future accelerator magnets. Several test wires of around 0.8 mm diameter, which have relatively small filament (/spl sim/50 micron diameter) and low matrix ratio (/spl sim/1.0), were fabricated, and the heat treatment and area reduction conditions after the rapid quenching process were studied. The highest noncopper J/sub c/ achieved during this study was 1734 A/mm/sup 2/ at 10 T and 4.2 K.