Title :
Deposition and characterization of YBCO/CeO2 thin films prepared by thermal co-evaporation on metallic tapes
Author :
Bindi, M. ; Botarelli, A. ; Gauzzi, A. ; Gianni, L. ; Baldini, A. ; Zannella, S.
Author_Institution :
Edison S.p.A., Milano, Italy
fDate :
6/1/2003 12:00:00 AM
Abstract :
A market penetration of HTS-based applications requires the development of a low-cost continuous production system for long HTS conductors. We report on deposition and characterization of YBa2Cu3O7-δ/CeO2 structures on metallic substrates prepared by a thermal co-evaporation technique. X-ray diffraction analysis reveals good biaxial orientation of both layers with inand out-of-plane FWHM = 8° and 9° respectively on biaxially textured Ni-Fe or Ni-W and on polycrystalline Hastelloy C276 substrates. YBCO films are metallic and superconducting with Tc,onset ∼ 88 K. Work is in progress to scale up the process for long tapes.
Keywords :
X-ray diffraction; barium compounds; cerium compounds; crystal orientation; high-temperature superconductors; iron alloys; molybdenum alloys; nickel alloys; superconducting tapes; superconducting thin films; superconducting transition temperature; tungsten alloys; vacuum deposited coatings; yttrium compounds; 88 K; Ni-Fe; Ni-Mo-Fe; Ni-W; X-ray diffraction analysis; YBCO/CeO2 thin films; YBa2Cu3O7-δ-CeO2; biaxial orientation; high temperature superconductor; low-cost continuous production system; polycrystalline Hastelloy C276 substrates; thermal co-evaporation on metallic tapes; Continuous production; High temperature superconductors; Sputtering; Superconducting epitaxial layers; Superconducting films; Superconducting magnetic energy storage; Superconducting magnets; Superconducting materials; Thermal conductivity; Yttrium barium copper oxide;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2003.811914
