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Textured La/sub 2/Zr/sub 2/O/sub 7/, Gd/sub 2/O/sub 3/, and Er/sub 2/O/sub 3/ were studied as buffer layer materials for long length YBCO coated conductors. Buffer layers were grown on Ni tapes using La, Zr, Gd, and Er organometallic compounds which were dissolved into solvents to obtain smooth films via a non-vacuum, reel-to-reel sol-gel process. Films were annealed at 900/spl deg/C-1200/spl deg/C under a flowing 4%H/sub 2/-Ar gas mixture. The buffer layers were characterized by ESEM, EDS, XRD, and DTA. It was found that textured, continuous, crack- and pinhole-free La/sub 2/Zr/sub 2/O/sub 7/, Gd/sub 2/O/sub 3/, and Er/sub 2/O/sub 3/ buffer layers were obtained.
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Çelik et al. (2001) studied this question.
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