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Reactive liquid phase sintering of solution-derived YBa2Cu3O7−x superconducting thin films: Part I. Ambient and precursor effects on BaO–CuO liquid phase formation

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Abstract

Processing atmosphere and precursor effects on liquid phase formation were investigated in the BaO–CuO thin film system. Liquid phase was observed at a significantly lower temperature (∼620 °C) under N2 atmosphere with carboxylate solution precursors. In the processing of the YBCO oxide superconductors, formation of the liquid phase facilitated the decomposition of BaCO3 and crystallization of the YBCO grains. Larger grains and greater (00l) preferred orientation were also observed in the YBCO films prepared with the presence of the liquid phase.

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Authors and Affiliations

  1. Department of Materials Science and Engineering, University of Illinois at Urbana–Champaign, Illinois, 61801, Urbana, USA

    Peir-Yung Chu & Relva C. Buchanan

  2. Department of Materials Science and Engineering, University of Cincinnati, Ohio, 45221-0012, Cincinnati, USA

    Relva C. Buchanan

Authors
  1. Peir-Yung Chu
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  2. Relva C. Buchanan
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Chu, PY., Buchanan, R.C. Reactive liquid phase sintering of solution-derived YBa2Cu3O7−x superconducting thin films: Part I. Ambient and precursor effects on BaO–CuO liquid phase formation. Journal of Materials Research 8, 2134–2142 (1993). https://doi.org/10.1557/JMR.1993.2134

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  • DOI: https://doi.org/10.1557/JMR.1993.2134

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