HIGH TRANSPORT CRITICAL CURRENTS IN FLEXIBLE SCREEN-PRINTED AG-(BI,PB)(2)SR2CA2CU3OX TAPES

We fabricated screen-printed Ag-(Bi,Pb)(2)Sr2Ca2Cu3Ox monofilament and multifilament tapes with filament number 1 less than or equal to N less than or equal to 5. As N increases, the critical current I-c increases monotonically until it reaches 54 A (77 K, 0 T) for N=5, while the critical current density J(c) is around 1.6X10(4) A/cm(2) (77 K, 0 T) nearly independent, of N. The bend strain tolerance is found to decrease with increasing N. For monofilament tapes the strain tolerance is 2%-3% strain while for multifilament tapes it decreases to similar to 1% at N=3 and similar to 0.4% at N=5. (C) 1995 American Institute of Physics.