Abstract
The powder-in-tube method using an Ag sheath is applied to achieve high current-capacity in the tapes of Bi-Pb-Sr-Ca-Cu-O (BPSCCO) with the high-Tc phase, by a combination of cold working and sintering. Two kinds of the BPSCCO powders with and without Ag doping are used as the materials for tape fabrication. The XRD, SEM-EDX, magnetic susceptibility and I-V characteristics at 77K obtained for above powders are presented and discussed. An improvement in Jc vs. B properties of the BPSCCO tapes by Ag doping is presented.
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