Characterizations of YBa5Cu6Ox superconductor synthesized by melt process

Abstract

The YBa5Cu6Ox (Y156) superconductors were synthesized by melt process method with sintering at 980 °C. The samples were characterized by the SEM, EDX, XRD and resistance measurement. The critical temperature onset (Tconset) and the critical temperature offset (Tconset) were found at 90 K and 80 K respectively. The crystal structures was orthorhombic performed by Rietveld full-profile analysis method with lattice parameter a = 3.80078 Å, b = 3.89068 Å and c = 22.94436 Å. The c/a ratio was 6.04 and the anisotropy was 2.33. The lower c/a ratio and higher anisotropic were found as increasing the sintering temperature with little change in a and b-axis value and found that as increasing of sintering temperature the critical temperature was decreased but the anisotropy was increased. © 2016 Trans Tech Publications, Switzerland.