Local variation of critical current in tensile- and bending strained Bi2223 composite tape

摘要

The superconductor tapes are subjected to mechanical and electromagnetic stresses (and therefore strains) during fabrication, winding and operation. For practical application, the study on the deformation/fracture behavior and its relation to superconducting property is inevitable. In this work, the local variation of critical current ic and n-value along the sample length and its relation to overall Ic in the tensile- and bending strained Bi2223 composite tape were studied.