Effect of transverse loads up to 300 MPa on the critical currents of Nb3Sn cables

H. Boschman, A.P. Verweij, S. Wessel, H.H.J. ten Kate, L.J.M. van de Klundert

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In the framework of the development of an experimental 10-T Nb3Sn dipole coil for the LHC (Large Hadron Collider) at CERN, the effects of transverse stress on Rutherford-type Nb3Sn cable were investigated. For this purpose a special facility was designed and put into operation in which the voltage-current behavior of short pieces of Nb3Sn cables can be investigated in a background field of up to 11 T and an applied stress of 300 MPa. The repulsive Lorentz force of 250 kN, generated by a set of superconducting coils, is used to impress the cable over an area of 20×42 mm2 maximum, in the presence of a transport current of up to 40 kA. The testing equipment is described, and the first results of the observed critical current degradation of two Nb3Sn cables are discussed
Original languageEnglish
Pages (from-to)1831-1834
Number of pages4
JournalIEEE transactions on magnetics
Issue number2
Publication statusPublished - 1991


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