FABRICATION OF BISCCO 2212/MGO CONDUCTORS BY MELT PROCESSING

We have investigated the possibility of fabricating robust BiSCCO 2212/MgO composite conductor structures which can carry significant currents. These have been prepared by a simple melting process and final long term annealing, and the transport critical currents measured between 77 and 4 K. We have successfully created metre long conductors which carry more than 10 A supercurrent at 4 K, and have been able to integrate four individual spiral conductors together into a coil structure. The durability of this kind of composite conductor has been demonstrated by repeated testing and remounting of individual samples.