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Nonuniform distribution of second phase particles in melt-textured Y–Ba–Cu–O oxide with metal oxide (CeO2, SnO2, and ZrO2) addition

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Abstract

Segregation of second-phase particles within Y1Ba2Cu3O7−y domain was investigated in melt-textured Y-Ba-Cu-O with metal oxide (CeO2, SnO2, and ZrO2) addition. It is found that coarse particles (Y2Ba1Cu1O5) are trapped with a special pattern in the interior of Y1Ba2Cu3O7−y domain, while fine BaCeO3 and BaSnO3 particles are present within the remnant liquid-phase region. During the growth of Y1Ba2Cu3O7−y domain, fine particles appear to be pushed out of the advancing Y1Ba2Cu3O7−y /liquid interface toward the liquid phase. The particle segregation that occurred during peritectic growth of the Y1Ba2Cu3O7−y domain was explained in terms of the Uhlmann-Chalmers-Jackson theory based on the particle interaction at solid/liquid interface.

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Authors and Affiliations

  1. Superconductivity Research Laboratory, Korea Atomic Energy Research Institute, P.O. Box 105, Yusung, 305-600, Taejon, Korea

    Chan-Joong Kim, Ki-Baik Kim & Gye-Won Hong

  2. Department of Material Science and Engineering, Sungwha University, 337-840, Choongnam, Korea

    Ho-Yong Lee

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  1. Chan-Joong Kim
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  2. Ki-Baik Kim
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Kim, CJ., Kim, KB., Hong, GW. et al. Nonuniform distribution of second phase particles in melt-textured Y–Ba–Cu–O oxide with metal oxide (CeO2, SnO2, and ZrO2) addition. Journal of Materials Research 10, 1605–1610 (1995). https://doi.org/10.1557/JMR.1995.1605

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  • DOI: https://doi.org/10.1557/JMR.1995.1605

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