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Processing and Fabrication of YBa2Cu4O8 and YBa2Cu4O8/YBa2Cu3Ox Composites

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Powders of YBa2Cu4O8 (“124”) were prepared via solid state reaction of Y2O3, BaCO3, and CuO. The mixed precursors were heated in flowing oxygen of reduced total pressure, followed by cooling and annealing at 750°C under ambient pressure oxygen. The procedure produced orthorhombic 124 as the main phase, with YBa2Cu3Ox (“123”) as a minor impurity phase. Phase purity improved, and nearly phase-pure 124 was obtained, upon annealing the as-calcined powder in flowing oxygen at 800°C.

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Authors and Affiliations

  1. Argonne National Laboratory, Argonne, IL, 60439, USA

    U. Balachandran, M. E. Biznek, K. C. Goretta, B. W. Veal & R. B. Poeppel

  2. T. O. Mason Northwestern University, Evanston, IL, 60201, USA

    U. Balachandran, M. E. Biznek, K. C. Goretta, B. W. Veal & R. B. Poeppel

Authors
  1. U. Balachandran
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  2. M. E. Biznek
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  3. K. C. Goretta
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  4. B. W. Veal
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  5. R. B. Poeppel
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Balachandran, U., Biznek, M.E., Goretta, K.C. et al. Processing and Fabrication of YBa2Cu4O8 and YBa2Cu4O8/YBa2Cu3Ox Composites. MRS Online Proceedings Library 169, 373–376 (1989). https://doi.org/10.1557/PROC-169-373

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  • DOI: https://doi.org/10.1557/PROC-169-373

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