Fully bonded internal-tin, niobium-tin (Nb/sub 3/Sn) conductor development at Oxford Superconducting Technology

Niobium-tin conductors are the class of conductors which allow the fabrication of superconducting magnets that generate over 9 T at 4.2 K and 12 T at 1.8 K, Oxford Superconducting Technology makes a wide range of niobium-tin conductors. One such conductor is a fully bonded internal tin, Nb/sub 3/Sn composite. The process for the manufacture of the fully bonded Nb/sub 3/Sn conductor is described. The process is applicable to conductors for high current applications and applications requiring low AC losses. Results for both classes of conductors are reported.