Fully Crystallized Bi-2212 Wire

Jc 6773 A/mm² at 4.2 K

Bi-2212 wire made from fully crystallized precursor powders suppresses detrimental Bi-2201 grains caused by residual copper-rich phase, yielding improved microstructure and higher critical current.

Jin, Lihua · Liu, Guoqing · Feng, Jianqing · Xu, Xiaoyan · Jiao, Gaofeng · Zhang, Shengnan · Hao, Qingbing Bin · Zhang, Pingxiang · Li, Chengshang Shan

Superconductivity 2023

Advantages

Jc of 6773 A/mm² at 4.2 K, self-field

Residual copper-rich phase causes more and larger Bi-2201 grains at melting onset