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The Fabrication and Characterization Superconducting of Compound Hg 2-x Tlx Sr2Ca2Cu3O10+δ | ||
| Tikrit Journal of Pure Science | ||
| Article 1, Volume 16, Issue 4, 2011, Pages 230-234 | ||
| Author | ||
| Nihad Ali Shafeek | ||
| Abstract | ||
| The samples of high temperature superconductors of the type (2223), (Hg 2-x Tlx Sr2Ca2Cu3O10+δ ) have been prepared through the method of solid state reaction process. The study deals with the effect of substitution of Tl in Hg with different rates (x = 0.0 – 0.4) at variable sintering temperature , sintering time and annealing at 850 0C for 12 hours , at average heating 2 0C/min. The best Tc value obtained for the compound was x = 0.2 . The results of x-ray test for the samples show that the Crystal structure is atetragonal structure. The samples contain a high ratio of Hg-2223 superconducting phase. The substitution of Tl with Hg leads to the increase of the grain size of superconducting phase . Key words : Superconductor, Critical Temperature .tetragonal structure | ||
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