Journal of the American Ceramic Society · 1992 · 16 citations · 22 references
Natural SciencesMaterials EngineeringMaterials ScienceCeramic MaterialsCondensed Matter PhysicsThin FilmsCoatingsSuperconducting MaterialsSuperconducting Thin FilmsThin-film DepositionThin-film MaterialsCritical Current DensityCuprate SuperconductorsCurrent DensityFilm ThicknessPrecursor CompoundsSuperconducting Critical TemperatureThin-film SuperconductorsViscosity
Two different multimetal organic compounds were synthesized and used to deposit thin Y:Ba:Cu oxide films on selected metal and ceramic substrates by the dip‐coating method. The rheology of the precursors is strongly influenced by the organic ligand, types of solvent, solvent–water molar ratio, and processing method. The precursor compounds were converted to suitable viscosity to achieve uniform film thickness processing on complex geometry. Superconducting transition temperatures T c in the range of 89 to 93 K have been measured, depending on processing parameters used. The critical current density, J c of the solution‐coated films had values comparable to those for poly‐crystalline samples. Y123 films exhibit c ‐axis alignment on Ag substrates. A prototype high‐ Q cavity was coated with Y123 and its performance was evaluated.
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Superconductivity at 90 K in the Tl-Ba-Cu-O system
Z. Z. Sheng, A. M. Hermann, A. El Ali et al. · Physical Review Letters · 1988 · 316 citations
Low-loss substrate for epitaxial growth of high-temperature superconductor thin films
R. W. Simon, C. E. Platt, A. E. Lee et al. · Applied Physics Letters · 1988 · 272 citations