Affiliation:
1. Northeastern University at Qinhuangdao Branch
2. Tsinghua University
Abstract
The effect of pre-treatment on the microstructure and critical current of (Bi,Pb)-2223/Ag tapes
has been investigated. Experimental results show that pre-treatment has important influences on the
formation and the grain size of the (Bi,Pb)-2223 phase as well as the performances of Bi-2223/Ag tapes.
During the pre-treatment process, the decomposition of the 3321 phase enhances the growth of
(Bi,Pb)-2212 grains, which promotes the formation of (Bi,Pb)-2223 phase because it followed the size
and orientation of the original (Bi,Pb)-2212 phase. As a result, the properties of Bi-2223/Ag tapes were
remarkably improved.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,General Materials Science