Effect of Partial Substitution of Hg.sr on Structure and Electrical of High Temperature Bi2-xHgxBa2-ysryCa2Cu3O10+δ Super conductor | ||
| Tikrit Journal of Pure Science | ||
| Article 1, Volume 17, Issue 1, March 2012, Pages 198-203 | ||
| Author | ||
| H. Razeg | ||
| Abstract | ||
| This research included preparing samples of the compound Bi2-xHgxBa2-ySryCa2Cu3O10+δ by the reaction of the solid state under a hydrostatic pressure 8ton/cm2 and annealing temperature 850Co . The best circumstances to obtain samples of the mentioned compound holding the superconductivity property at high temperatures, are at partial substitution for the components Hg, Sr in the compound at different rates to (X,Y) that equals (0.1, 0.2, 0.3, 0.4). The study of the crystal structure test showed that it retained on the tetragonal type, and the critical temperature steps-up from (132 into 140) at increasing the (X ) values to (0.1, 0.2) rates. While at (X) values increasing to (0.4, 0.5) rates, the critical temperature waned to (125K) and a change to the crystal structure occurred. The superficial crystal structure has been tested by Scanning Electron Microscope, to know the components' rates in the compound and how the annealing temperature and the imposed pressure affect the compound, as well as knowing the partial substitution effect in the components and specifying the quantitative and qualitative rates in the compound. | ||
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