Optimize superconductor properties by controlling sintered time

Abstract

In this work, the effect of sintering time on electrical resistivity, phase purity and crystal structure of superconductors Bi2Sr2Ca2Cu3O10+ δ, which was manufactured by the usual solid state reaction. X-ray diffraction analysis showed all sample structures are orthorhombic and the changing of sintered time from 70 to 130 produce a clear change in lattice parameter, ratio c/a and mass density ρm. Four probes technique were used to find the critical temperature Tc and the results proved that all samples had a metallic behavior when cooled to liquid nitrogen temperature. There was also a change in transition temperature when the sintered time increasedIn this work, the effect of sintering time on electrical resistivity, phase purity and crystal structure of superconductors Bi2Sr2Ca2Cu3O10+ δ, which was manufactured by the usual solid state reaction. X-ray diffraction analysis showed all sample structures are orthorhombic and the changing of sintered time from 70 to 130 produce a clear change in lattice parameter, ratio c/a and mass density ρm. Four probes technique were used to find the critical temperature Tc and the results proved that all samples had a metallic behavior when cooled to liquid nitrogen temperature. There was also a change in transition temperature when the sintered time increased