Superconducting Properties of Bi1.7-xPb0.3ASXSr2Ca2Cu3O10+ System

Authors

  • L.K. Abbas Department of Physics, College of Science, University of Baghdad, Baghdad, Iraq Author
  • W.M. Abdullahz Department of Physics, College of Science, University of Baghdad, Baghdad, Iraq Author

DOI:

https://doi.org/10.14741/

Keywords:

Bi1.7-xPb0.3ASxSr2Ca2Cu3O10+δ superconductivity; critical temperature; X-ray diffraction.

Abstract

High temperature superconductors with a nominal composition Bi1.7-xPb0.3ASxSr2Ca2Cu3O10+δ for x=0, 0.05, 0.1, 0.15, 0.2, 0.25, 0.3, 0.4 and 0.5 was prepared by solid state reaction method by two steps. The effect of substitution of As on Bi sites, sintering time and sintering temperature has been investigated. The results showed that the optimum sintering temperature is equal to 830ºC and sintering time is 140 h. Substitution of As will increase the transition temperature. The highest Tc obtained for Bi1.7-xPb0.3ASxSr2Ca2Cu3O10+δ composition was 125K0 for the sample with x=0.25. The x-ray diffraction analysis showed an orthorhombic structure with a high Tc phases (2223) as a dominant phase and low Tc phase (2212) in addition to some impurity phases. Lattice parameter values of prepared samples have been calculated.

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Published

2016-02-29

Issue

Vol.6, No.1 (Jan/Feb 2016)

Section

Articles

How to Cite

Superconducting Properties of Bi1.7-xPb0.3ASXSr2Ca2Cu3O10+ System. (2016). International Journal of Current Engineering and Technology, 6(1), 200-203. https://doi.org/10.14741/