Title :
Sol-gel processing of buffer layers on Ni tape for YBCO surface coated conductors
Author :
Celik, E. ; Mutlu, I.H. ; Hascicek, Y.S.
Author_Institution :
Nat. High Magnetic Field Lab., Florida State Univ., Tallahassee, FL, USA
fDate :
3/1/2000 12:00:00 AM
Abstract :
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.
Keywords :
X-ray chemical analysis; barium compounds; high-temperature superconductors; lanthanum compounds; lead compounds; nickel; scanning electron microscopy; sol-gel processing; strontium compounds; yttrium compounds; 600 to 750 C; BaZrO/sub 3/; EDS; LaAlO/sub 3/; Ni; Ni tape; PbTiO/sub 3/; SEM; SrTiO/sub 3/; XRD; YBCO surface coated conductors; YBa/sub 2/Cu/sub 3/O/sub 7/; acetates; alkoxides; buffer layers; homogenous crack-free dense films; perovskite buffer layers; precursors; sol-gel YBCO surface coated conductor; sol-gel processing; Buffer layers; Conducting materials; Conductive films; Conductors; Crystalline materials; Lattices; Strontium; Superconducting films; Yttrium barium copper oxide; Zirconium;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
