Preparation of high-Jc large-size YBCO films (30 × 10 cm2) by coating-pyrolysis process on CeO2-buffered sapphire
作者： T. Manabe , M. Sohma , I. Yamaguchi , W. Kondo , K. Tsukada
DOI: 10.1016/J.PHYSC.2004.01.110
关键词: Fluorine 、 Metal 、 Pyrolysis 、 Sapphire 、 Fault current limiter 、 Materials science 、 Coating 、 Analytical chemistry 、 Annealing (metallurgy) 、 Tube furnace
摘要: Abstract A large-size, two-dimensional YBa 2 Cu 3 O 7 (YBCO) film was successfully prepared by a chemical solution-based coating-pyrolysis process on 30 × 10-cm size rectangular substrate of R -plane sapphire with vacuum-deposited CeO buffer layer. fluorine-free metal acetylacetonate-based solution used for coating the substrate. large-diameter spin-coater and tube furnace were adopted in annealing procedure, respectively. The c -axis oriented YBCO grown demonstrated high inductive- J values an average 2.6 MA/cm at 77 K. distribution fairly uniform ex situ process, i.e., 85% observations fall within ±20% average.
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