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Strain dependence of the critical current and critical field in multifilamentary Nb3Sn composites

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1 Author(s)
Ekin, J.W. ; National Bureau of Standards, Boulder, Colorado

High-Jcmultifilamentary Nb3Sn superconductors with widely varying amounts of prestrain and critical field values can be characterized fairly accurately by a single normalized critical field-strain relationship. Such a relationship permits first order prediction of critical-current degradation at arbitrary magnetic field magnitudes knowing only two parameters for any conductor, the prestrain and the maximum critical field. Some of the conductor-fabrication factors affecting the parameters are considered.

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Magnetics, IEEE Transactions on  (Volume:15 ,  Issue: 1 )