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Textured buffer layers for YBCO coated conductors by continuous sol-gel processing

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8 Author(s)
H. Okuyucu ; Nat. High Magnetic Field Lab., Tallahassee, FL, USA ; E. Celik ; M. K. Ramazanoglu ; Y. Akin
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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

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IEEE Transactions on Applied Superconductivity  (Volume:11 ,  Issue: 1 )