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Distribution of cerium additions in production of zircon-mullite ceramics based on corundum powders of different fineness

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Abstract

X-ray structural analysis (XSA), Raman spectroscopy, and scanning electron microscopy are used to investigate the distribution of addition of cerium dioxide in materials consisting of a stoichiometric mixture of zircon and powdered alumina of different fineness. The obtained data indicate that the use of fine alumina powder promotes formation of a liquid phase enriched in cerium, deposition of cerium oxide during solidification of the glass phase, and a decrease in the relative content of tetragonal zirconium dioxide. Morphological peculiarities of various phases after sintering for 2 h at 1600°C are determined. It is established that addition of cerium dioxide makes it possible to increase the compression strength of a zircon-mullite specimen by 1.5–3.5 times depending on the fineness of the applied powdered alumina.

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Authors and Affiliations

  1. Scientific Center for Powdered Materials Science, Perm National Research Polytechnic University, Perm, Russia

    V. N. Antsiferov, S. E. Porozova & V. B. Kul’met’eva

  2. Perm National Research Polytechnic University, Perm, Russia

    E. V. Kalabina

Authors
  1. V. N. Antsiferov
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  2. S. E. Porozova
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  3. V. B. Kul’met’eva
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  4. E. V. Kalabina
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Correspondence to V. N. Antsiferov.

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Original Russian Text © V.N. Antsiferov, S.E. Porozova, V.B. Kul’met’eva, E.V. Kalabina, 2011, published in Perspektivnye Materialy, 2011, No. 5, pp. 42–47.

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Antsiferov, V.N., Porozova, S.E., Kul’met’eva, V.B. et al. Distribution of cerium additions in production of zircon-mullite ceramics based on corundum powders of different fineness. Inorg. Mater. Appl. Res. 3, 145–150 (2012). https://doi.org/10.1134/S2075113312020025

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  • DOI: https://doi.org/10.1134/S2075113312020025

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