Powder-in-Tube (PIT) Nb3Sn conductors for high-field magnets


Lindenhovius, J.H. and Hornsveld, E.M. and Ouden, A. den and Wessel, W.A.J. and Kate, H.H.J. ten (2000) Powder-in-Tube (PIT) Nb3Sn conductors for high-field magnets. IEEE Transactions on Applied Superconductivity, 10 (1). pp. 975-978. ISSN 1051-8223

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Abstract:New Nb3Sn conductors, based on the powder-in-tube (PIT) process, have been developed for application in accelerator magnets and high-field solenoids. For application in accelerator magnets, SMI has developed a binary 504 filament PIT conductor by optimizing the manufacturing process and adjustment of the conductor lay-out. It uniquely combines a non-copper current density of 2680 A/mm2@10 T with an effective filament diameter of about 20 ¿m. This binary conductor may be used in a 10 T, wide bore model separator dipole magnet for the LHC, which is being developed by a collaboration of the University of Twente and CERN. A ternary (Nb/7.5wt%Ta)3Sn conductor containing 37 filaments is particularly suited for application in extremely high-field superconducting solenoids. This wire features a copper content of 43%, a non-copper current density of 217 A/mm2@20 T and a Bc2 of 25.6 T. The main issues and the experimental results of the development program of PIT Nb3Sn conductors are presented and discussed in this paper
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Copyright:© 2000 IEEE
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Link to this item:http://purl.utwente.nl/publications/23925
Official URL:https://doi.org/10.1109/77.828394
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