Manufacturing Process of Superconductors with Reduced Critical Current Dependence under Axial Mechanical Strain
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United States of America Patent
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Nov 12, 2015
app pub date -
Mar 27, 2015
filing date -
Apr 3, 2014
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Abstract
A method for manufacturing a superconducting wire having a plurality of filaments, at least some of which are twisted around the wire axis, characterized in that the superconducting filaments are twisted so that the majority of filaments comes to lie at an angle of twist greater than 50° with respect to the wire axis. It is possible in this way, using simple technical means, to significantly reduce the great dependence of the critical current of a superconducting wire at high magnetic fields as a function of an axial strain. In addition, with a corresponding arrangement of the superconducting filaments, the critical current dependence of a superconducting wire at high magnetic fields as a function of an axial strain can be largely canceled.
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