ISSN:
1572-9605
Keywords:
Ag/Bi-2223 composites
;
superconducting tapes
;
microstructure
Source:
Springer Online Journal Archives 1860-2000
Topics:
Electrical Engineering, Measurement and Control Technology
,
Physics
Notes:
Abstract The processing of Ag/Bi(Pb)-2223 tapes via the prevailing solid state reaction was investigated. A precursor powder of the composition Bi1.86Pb0.26Sr1.96Ca1.95Cu2.97O10+δ containing mainly Bi-2223 phase was employed. Particular attention was devoted to the microstructural properties of the tapes subjected to rolling and subsequent heat treatment in one, two, and three steps, respectively. A sharp texturing gradient exists in the superconducting cores, and the repeated treatment leads to deterioration of the superconducting properties. The latter effect is ascribed to the formation of periodic defects arising during the repeated rolling of the sintered superconducting core.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1023/A:1022679816997
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