AN INVESTIGATION OF THE CHARACTERIZATION AND DEVELOPMENT OF HTS JOINTS IN BSCCO 2212 AG COMPOSITES/

Superconducting joints are required to provide the long lengths of con ductor and the temporal stability necessary in HTS magnets, The Delta B program at the NHMFL has initially developed the joint technology on BSCCO 2212 tapes using a wrap joint technique, Different combinations of stock conductor, including both monocore and multifilament tapes, and fill materials have been investigated in several prototype generat ions. The transport properties, in-field performance, and microstructu re of the most promising prototypes are investigated, This wrap joint technique has produced several joints with critical currents higher th an the critical currents of their respective unjoined conductor sectio ns.