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Investigation of {\rm Nb}_{3}{\rm Sn} Strand for ITER by Bronze Route

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7 Author(s)
K. Zhang ; Western Superconducting Technologies Co. Ltd., Xi'an, Shaanxi, China ; P. X. Zhang ; X. D. Tang ; J. H. Guo
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As one of low temperature superconducting materials, multifilamentary Nb3Sn strand is an ideal choice for high-field superconducting magnets (>10 T). The International Thermonuclear Experimental Reactor (ITER) has special requirements for the Nb3Sn strands: high critical current density and low hysteresis loss. Multifilamentary Nb3Sn strand with high performance has been developed by bronze process. The highest non-Cu Jcn(12 T, 4.22 K, 0.1 ??V/cm) value of 812 A/mm2 has been obtained. The hysteresis loss of the strand is 380 mJ/cm3 with 650??C ??100 h. The properties of the Nb3Sn strand can meet the specifications proposed by the ITER project.

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IEEE Transactions on Applied Superconductivity  (Volume:20 ,  Issue: 3 )