The reduction of the critical current in Nb3Sn cables under transverse forces

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Kate, H.H.J. ten and Weijers, H. and Wessel, S. and Boschman, H. and Klundert, L.J.M. van de (1992) The reduction of the critical current in Nb3Sn cables under transverse forces. IEEE Transactions on Magnetics, 28 (1). pp. 715-718. ISSN 0018-9464

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Abstract:The degradation of the critical current of impregnated Rutherford type Nb3Sn cables was investigated as a function of the transverse force applied to the cable surface. Voltage-current characteristics were measured between 9 and 11 T by which the cable is supplied with the full transport current while a section on the broad side of the cable with a length of 40 mm is under pressure. A few samples were investigated as a function of the transverse force strands in the cable. It appears that the degradation of the strands is not uniform; for example, at 200 MPa some strands show 10% while others have 40% critical current degradation, also depending on the critical current criterion used. The global degradation of the cable is 12±2% at 200 MPa, though it is possible that a single bad strand in a cable limits the cable to below this value due to premature quenching of that strand
Item Type:Article
Copyright:© 1992 IEEE
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Science and Technology (TNW)
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Link to this item:http://purl.utwente.nl/publications/23717
Official URL:http://dx.doi.org/10.1109/20.119979
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Metis ID: 128516