Effects of complex processings on critical current density of Bi-2223 tapes

Abstract

Some long-length Bi(Pb)-2223 tapes produced using the PIT technique and multilayered structure technique have been developed for an industrial material for which the requirement is the class at 77.3 K in long-length wires. For this purpose, we have achieved recent progress in performance, such as reproducibility of the class at 77.3 K and low magnetic fields for long-length tapes having sound filaments, overall critical current density of in a low silver:superconductor ratio tape, allowable strength of more than 100 MPa using silver alloy sheath and low AC loss of less than in kA class conductors using twisted wires.

Fabrication and electrical properties of a high-Tcsuperconducting layered conductor

“…The discovery of high-T c superconductors (HTSCs) with zero resistance in liquid nitrogen heightened interest in the potential application of these materials such as in electric power equipment. The results of research have not been very far away from developing superconducting power cables, current leads and magnets for commercial application, capable of carrying large currents at liquid nitrogen temperature [1][2][3]. Current leads are one of the first commercial applications of HTSCs.…”