Critical current degradation in Nb3Sn cables under transverse pressure

Herman H.J. ten Kate, H.W. Weijers, H. van Oort, J.M. van Oort

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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
Original languageUndefined
Pages (from-to)1334-1337
Number of pages4
JournalIEEE transactions on applied superconductivity
Issue number1, Par
Publication statusPublished - 1993


  • IR-23749
  • METIS-128548

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