Authors: Yan Dong Aimin Sun Hongtao Zhang Meng Zhang Bin Xu
Publish Date: 2016/08/02
Volume: 29, Issue: 11, Pages: 2765-2769
Abstract
The effect of substitution of Pb by Sn in Bi16Pb04−x Sn x Sr2Ca2Cu3 O δ samples at x = 00 01 02 and 03 on the critical transition temperature and structural properties was investigated in this work All the samples were prepared by the solidstate reaction method The prepared samples were characterized by Xray diffraction XRD resistance–temperature curve R–T scanning electron microscopy SEM and energydispersive spectroscopy EDS The Sn 4+ substitution of Pb 2+ caused significant changes in the properties of the samples The formation of the Bi Pb2212 phase was stabilized and the T c onset was improved at the x = 02 level of Sn 4+ substitution The SEM micrographs have shown that the structure of the sample with x = 02 became more dense However samples with x = 01 and 03 have not shown zero resistance by EDS analysis because of oxygen deficiency
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