A “Mechanical Aligning” Method for Preparing High-J_c YBa₂Cu₃O_x Superconductors

Abstract

High- J c YBa 2 Cu 3 O x ceramic samples were prepared by a mechanical aligning method which involved of large crystal growing and vibration aligning. In these samples, the crystal grains were found to be highly oriented and closely packed. Accordingly, the maximum critical current density was found to be 4200 A/cm 2 at the liquid nitrogen temperature.