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High temperature superconductor with nominal composition Bi1.6Pb0.4Sr1.8Ba0.2Ca2 Cu3O10+? was prepared by solid state reaction method. Two sets of samples have been prepared .The first one was quenched in air; the second set was quenched in liquid nitrogen. X-ray diffraction analyses showed an orthorhombic structure with two phases, high –Tc phase (2223) and low-Tc phase (2212) in addition to that impure phase was found. It has been observed that quenched in air samples display a sharp superconducting transition and a higher-Tc phase than that of the quenched in liquid nitrogen samples.
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Journal BS. Effect of sintering time on Bi1.6Pb0.4Sr1.8Ba0.2Ca2Cu3O10+? compound quenched in air and liquid nitrogen: Ghazala Y. Hermiz|Bushra A. Aljurani |Hassan A.Thabit. Baghdad Sci.J [Internet]. 2014Jun.1 [cited 2021Aug.4];11(2):713-7. Available from: https://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/2684