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Development of Single-Stacked Internal-Tin Nb _{3} Sn Superconducting Wire

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5 Author(s)
Ohata, K. ; Hitachi Cable, Ltd., Tsuchiura, Japan ; Miyashita, K. ; Wadayama, Y. ; Kimura, M.
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The internal-tin technique is an excellent method of fabricating Nb3Sn superconducting wires with high critical current densities. We have developed an internal-tin Nb3Sn wire in which the multi-filamentary wire is fabricated by assembling mono-filamentary Nb elements and mono-filamentary Sn elements. The simple fabrication process allows a reduction in the fabrication cost of the wires. By optimizing the spacing of the Nb3Sn filaments, a 600 m long wire with a high critical current density of 400 A/mm2 at 18 T and no flux jumping was fabricated.

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Applied Superconductivity, IEEE Transactions on  (Volume:22 ,  Issue: 3 )