Reel-to-Reel PLD Fabrication of YBCO Coated Conductor by Single and Multi-coating Processes

摘要

YBa_2Cu_3O_(7-δ) (YBCO) coated conductors have been fabricated on CeO_2/YSZ/Y_2O_3 buffered Ni-5at%W tapes by pulsed laser deposition (PLD) using the reel-to-reel process. A multi-coating process for YBCO film was employed, and single and multi-coating methods for YBCO films are compared. X-ray diffraction texture measurements showed good in-plane and out-of-plane crystalline orientations for the YBCO films. Magnetic measurements were carried out on the samples, and the critical current density as a function of the magnetic field was investigated. The results showed that the superconducting properties of YBCO films fabricated by the multi-coating process were better than those prepared by the single coating process.