Effect of Pre-Treatment on the Microstructure and Superconducting Properties of Bi-2223/Ag Tapes

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....

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Bibliographic Details
Published in:Key engineering materials 2008-01, Vol.368-372, p.638-640
Main Authors: Han, Zheng He, Li, Ming Ya
Format: Article
Language:English
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Summary: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.
ISSN:1013-9826
1662-9795
1662-9795
DOI:10.4028/www.scientific.net/KEM.368-372.638