Superconductivity of Screen-Printed YBa2Cu3Oy Thick Films on Y2BaCuO5 Substrates

Abstract
YBa2Cu3O y superconducting thick films have been prepared on Y2BaCuO5 substrate by the screen printing and sintering method. The critical temperature T c and current density J c at 77 K in an absence of magnetic fields were extremely high as compared with the films printed on the other ceramic substrates such as MgO, SrTiO3 and YSZ, and were 86 K and 3000 A/cm2, respectively.