間欠回転磁場におけるY系高温超伝導体の配向挙動

抄録

We report changes in the degrees of tri-axial orientation as functions of applied magnetic field and rotation rate for Y₂Ba₄Cu₇O_y powder samples oriented in epoxy resin under modulated rotating magnetic fields (MRFs). Although the degrees of orientation were reduced for the decrease in both applied field and rotation rate, mechanisms of the reduction of the orientation degrees were found to be different. Optimization of the MRF conditions or quantification of tri-axial magnetic anisotropy in a target substance is required for the production of tri-axially oriented ceramics based on a colloidal process.