Textured buffer layers for YBCO coated conductors by continuous sol-gel processing
2000 Applied Superconductivity Conference, Virginia Beach, VA, United States Of America, 17 - 22 September 2000, vol.11, pp.2889-2892, (Full Text)
- Publication Type: Conference Paper / Full Text
- Volume: 11
- Doi Number: 10.1109/77.919666
- City: Virginia Beach, VA
- Country: United States Of America
- Page Numbers: pp.2889-2892
- Keywords: Buffer layer, Coated conductors, Sol-gel, Superconductivity, YBCO
- Ankara Yıldırım Beyazıt University Affiliated: No
Abstract
In order to develop alternative buffer layers for YBCO coated conductors, RE2O3 (RE=La, Pr, Sm, Eu, Gd, Tb, Ho, Yb, and Lu) thin films were studied as candidate materials. Buffer layers were grown on Ni tapes using organometallic compounds that are 2,4-pentanedionates, isopropoxides, and acetates by a continuous, non-vacuum, sol-gel process. Films were annealed at 900°C-1200°C under 4%H2-Ar gas mixture. The buffer layers were characterized by means of ESEM, SEM, EDS, XRD and pole figure analysis. Textured, pinhole free crack free, continuous buffer layers were obtained by using 2,4-pentanedionates.