Anisotropy of the critical current density in Bi-2223/Ag tapes

摘要

The effect of thermomechanical processing on texture in Bi-2223 Ag-sheathed tapes as determined from the anisotropy of the critical current density J(sub c) in an applied magnetic field will be discussed. Model calculations for a distribution of grain orientations in the tape produce good fits to the data and allow characterization of the degree of long-range texture. There is a qualitative correlation of J(sub c) with global texture, but other factors, such as intergrain connectivity, are also important.