Critical current degradation in Nb3Sn cables under transverse pressure

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Kate, H.H.J. ten and Weijers, H.W. and Oort, J.M. van (1993) Critical current degradation in Nb3Sn cables under transverse pressure. IEEE Transactions on Applied Superconductivity, 3 (1, Par). pp. 1334-1337. ISSN 1051-8223

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Abstract:The critical current degradation of a few sample Rutherford-type Nb3Sn cables is investigated as a function of transverse pressure. A comparison is made between Nb3Sn strands produced by the powder-in-tube, bronze, and modified jelly roll processes. The (keystoned) Rutherford cables are charged at 11 T under transverse pressures up to 250 MPa. Large differences in critical current reduction are observed, ranging from 6 to about 60% at 200 MPa, depending on the type of Nb3Sn. It appears that about 40% of the total reduction is irreversible. Moreover, the irreversible part shows relaxation, and a partial recovery is possible by thermal cycling
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Copyright:© 1993 IEEE
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Science and Technology (TNW)
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Link to this item:http://purl.utwente.nl/publications/23749
Official URL:http://dx.doi.org/10.1109/77.233653
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Metis ID: 128548