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Influence of deposition and annealing parameters on some properties of YBCO films prepared by spray pyrolysis

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Abstract

Superconducting YBCO films were prepared by chemical deposition of aerosol generated from nitrate solutions by pneumatic and ultrasonic atomizers. Single crystalline YSZ and MgO substrates were used. Two different substrate temperatures were applied, with the chemical composition of starting solutions being adjusted accordingly. Deposited precursor films were thermally processed under two basically different conditions, i.e., either in atmospheric O2 atT≈900°C, or in\(p_{O_2 } \) atT≤600°C. The influence of these different deposition and annealing parameters onT c andJ c values, microstructure, and surface morphology is reported. By optimizing our technological procedure, a real possibility exists to prepare (by means of aerosol deposition) YBCO films withJ c values of at least 104–105 A/cm2, at processing temperatures (both deposition and annealing as well) not exceeding 600–700°C.

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Authors and Affiliations

  1. Depto. de Física, Centro de Investigatión y de Estudios Avanzados del IPN, Apdo. Postal 14-740, 07300, México, D. F., México

    A. Conde-Gallardo, M. Jergel & C. Falcony

  2. Institute of Electrical Engineering, Slovak Academy of Sciences, 84239, Bratislava, Slovak Republic

    M. Jergel & S. Chromik

  3. Depto. de Ingeniería y Metalúrgica, Instituto Politécnico Nacional, Apdo. Postal 75-373, 07300, México, D. F., México

    J. G. Cabañas Moreno

Authors
  1. A. Conde-Gallardo
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  2. M. Jergel
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  3. C. Falcony
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  4. S. Chromik
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  5. J. G. Cabañas Moreno
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Conde-Gallardo, A., Jergel, M., Falcony, C. et al. Influence of deposition and annealing parameters on some properties of YBCO films prepared by spray pyrolysis. J Supercond 9, 101–111 (1996). https://doi.org/10.1007/BF00728434

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  • DOI: https://doi.org/10.1007/BF00728434

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