Optimization of intergrain connection in high-temperature superconductor Bi2Sr2CaCu2O x*
Li Cheng-Shan, Zhang Sheng-Nan†, Hao Qing-Bin, Ma Xiao-Bo, Lu Tian-Ni, Zhang Ping-Xiang
       
Typical HRTEM images for grain boundaries in (a) CP + sintering sample and (b) modified SPS sample.