YBCO(123), thick films production and characterization

In this work, we have fabricated YBa2Cu3O7-x (123) films on MgO and SrTiO3 substrates by ultrasonic spray pyrolysis (USP) technique. USP technique was used given its simple and low-cost as well as gives the opportunity of controlling the film composition precisely without an extensive labor. Characterization of the films were performed with XRD, SEM-EDX, R-T, M-H and M-T measurements. Best microstructural formation was obtained for the film on the MgO substrate. The Tc values of the films on MgO and SrTiO3 substrates were found to be 86 K and 87 K, respectively. Jc value for the film MgO substrate was found as approximately 4.4x105 A/cm2 at 5 K under 0 T magnetic field.