Fabrication the compound Sn2-xAgxBa2-ySryCa2Cu3O10+δ superconductor study the electrical and nano setting

The superconducting compound Sn2-xAgxBa2-ySryCa2Cu3O10+δ was prepared using a two-stage solid--state reaction method with exchange percentages (0.2, 0.4, 0.6, 0.8) of "Ag,Ba" instead of "Sn" and "Sr", then we performed an annealing process in 825 0C for the prepared samples and the samples were pressed using a hydraulic press under 0.375 MPa. We conducted tests for the prepared samples, including electrical measurements were used under low temperatures after dipping the samples in nitrogen, showing that the critical temperature of the compound Tc=143 K is the best critical temperature when x, y=0.6, and then tested SEM and EDS, to know the surface and Nano properties of the compound.