Anisotropy of critical current and glass-liquid transition flux density in Bi-2223/Ag tape

摘要

We present the anisotropy of current transport characteristics in Bi-2223/Ag multifilamentary tapes as a function of temperature and external magnetic field. Angular dependence of the critical current and the glass-liquid transition magnetic flux density are well described by the model, taking into account the misorientation of grains with constant effective anisotropy factor, #gamma#. Furthermore, #gamma# increases apparently as temperature and/or critical current increases due to the weak-link properties.