Critical Currents and Processing of Bi-2223/Ag Multi-filamentary Tapes

摘要

Based on understanding the mechanisms of formation and texturization of Bi-2223 phase, mono- and multi-filamentary Bi-2223/Ag tapes have been fabricated by modified PIT method. The effects of carbon content on the propertis of 37 filaments' tapes were investigated. Transprt critical current densities (Jc) and their dependence on field direction have been measured at 77K in magnetic fields up to 1T. In addition, 12 filaments' tapes with more homogeneity have been prepared by rectangular deformation using a four roller "Turks Head".