Sol-gel processing of buffer layers on Ni tape for YBCO surface coated conductors

Perovskite buffer layers of SrTiO/sub 3/, LaAlO/sub 3/, PbTiO/sub 3/, and BaZrO/sub 3/ were deposited using a sol-gel process from solutions derived from basic acetates and alkoxides. Homogenous, crack-free, and dense films of perovskite were deposited onto Ni tapes between temperatures of 600/spl deg/C and 750/spl deg/C by adjusting the concentration of precursors in the solutions used as material for YBCO surface coated conductors. These films were characterized by SEM, EDS and XRD. SrTiO/sub 3/ and PbTiO/sub 3/ buffer layers on Ni tapes were produced for the sol-gel YBCO surface coated conductor development.