A Study on S.R.Topography of the Structural Defects in High-J_c Superconducting YBaCuO Crystal Prepared by the MTG Technique

摘要

It is well known that for technological application,a great effort has been done to enchance J_c value ofsuperconducting YBaCuO sintered bulk.Except oxygen content,the main problem for increasing critical cur-rent density J_c is to eliminate the weak link and to control crystallographic anisotropy.It is necessary tomake YBaCuO superconducting bulk have a strong texture with C-axis orientation.Since Jin et al.has suc-