FABRICATION OF HIGH T-C COILS FROM BSCCO-2212 POWDER IN TUBE AND DIP COATED TAPE

Engineering considerations for the production of small HTc coils for c ommercial high current applications have been evaluated, Part of this study involved investigations of the conditions under which coils are wound, heat treated and potted in order to reproduce, in lengths excee ding 50 m, the critical current density (J(c)) which can be attained i n short samples of a few cm in length, Individual pancake coils were e valuated by testing their 4.2 K superconducting current capacity in th e presence of an applied magnetic field up to 10 T. The performance of each coil was compared to the J(c) capacity predicted from short samp le J(c) testing on samples of a few cm length, Coils were then stacked to form prototype magnets and the field generated by the magnet was m easured using a Hall Probe.