Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 1 of 1
Full-Text Articles in Engineering
Influence Of Nano-Ag Addition On Phase Formation And Excess Conductivity Analysis Of (Cu0.5tl0.5)-1223 Superconducting Phase, Nayera Mohammed, Seham Mahmoud, Weleed Abdeen, Marwa Hasebbo
Influence Of Nano-Ag Addition On Phase Formation And Excess Conductivity Analysis Of (Cu0.5tl0.5)-1223 Superconducting Phase, Nayera Mohammed, Seham Mahmoud, Weleed Abdeen, Marwa Hasebbo
BAU Journal - Science and Technology
Ceramic superconducting samples of type (nano-Ag)xCu0.5Tl0.5Ba2Ca2Cu3O10-δ, 0.0 ≤ x ≤ 3.0 wt.%, were successfully synthesized via single step solid-state reaction technique at 850 ºC and under ambient pressure. The samples were characterized by XRD and SEM. Obtained data revealed that the highest grains connectivity volume fraction was detected for the sample with x = 0.15 wt.%. The electrical properties of the prepared samples was examined using the electrical resistivity measurements, and the results proved that the highest superconducting transition temperature Tc was observed at x = 0.15 wt.%. Furthermore, the fluctuation conductivity Δσ(T), above Tc, was analyzed as a function …