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Effect of Partial Substitution of Pb on Structure and Electrical Properties of High Temperature Bi2Ba2Ca2Cu3O10+ superconductor | ||
| Tikrit Journal of Pure Science | ||
| Article 1, Volume 16, Issue 1, 2011, Pages 217-224 | ||
| Author | ||
| Khalid Hamdi Razzeg | ||
| Abstract | ||
| The study included prepared the samples of high temperature superconductors (Bi2Ba2Ca2Cu3O10+) compounds using Solid State reaction method and with annealing under both different hydrostatic pressure and annealing temperature. It is found that the annealing temperature (1123 K) with hydraulic pressure 8 ton/cm2 are the most best condition for obtaining the samples of the above compound included Superconductivity at higher temperature . x-ray diffraction test showed that both samples (Bi2Ba2Ca2Cu3O10+) have Tetragonal crystalline stracture which prepared at annealing temperature (1123 K) and pressure 8 ton/cm2.. The partial substitution of Pb on the compounds we have (Bi2-xPbxBa2Ca2Cu3O10+δ) formulla with different rates of (x) equal to ( 0.1,0.2,0.3,0.4) . The crystalline structure test showed will conserved their Tetragonal type. While the critical temperature increased from 128K to 135K in that when the (x) value increased from (0.1 – 0.2) and in case of increasing the (x) value to (0.3,0.4) the compound changed from Tetragonal to Orthorhombic | ||
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