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Stability of superconducting Y1Ba2Cu3O7−x phase at 925° C in air

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Abstract

We have investigated and analysed the stability of superconducting y1Ba2Cu3O7−x material at 925° C in the normal atmosphere. The material decomposes to BaCO3, CuO, and Y2O3 due to the action of moisture and atmospheric gases. The decomposed materials surround grains of the superconducting phase. The decomposed boundary layer appears to be a limiting factor for grain growth and densification. The superconducting materials also develop defects such as stacking faults and/or twins due to prolonged heat treatment.

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Authors and Affiliations

  1. University of Dayton Research Institute, 45469-0001, Dayton, Ohio, USA

    Binod Kumar, R. S. Harmer, T. N. Wittberg & S. K. Cordonnier

  2. Universal Energy Systems, 4401 Dayton-Xenia Rd, 45432, Dayton, Ohio, USA

    A. K. Rai

Authors
  1. Binod Kumar
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  2. R. S. Harmer
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  3. T. N. Wittberg
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  4. S. K. Cordonnier
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  5. A. K. Rai
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Kumar, B., Harmer, R.S., Wittberg, T.N. et al. Stability of superconducting Y1Ba2Cu3O7−x phase at 925° C in air. J Mater Sci 23, 3879–3883 (1988). https://doi.org/10.1007/BF01106808

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  • DOI: https://doi.org/10.1007/BF01106808

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