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Phase Formation in Al2O3–ZrO2–CeO2 Nanopowders Modified with Calcium Cations

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Inorganic Materials Aims and scope

Abstract

We have studied phase formation in calcium-modified Al2O3–ZrO2–CeO2 nanopowders during sol–gel synthesis. The results demonstrate that heat treatment of the nanopowders first leads to the formation of a zirconium dioxide-based solid solution stabilized with cerium cations. Raising the heat treatment temperature helps the crystallization of corundum, a stable phase of aluminum oxide, to reach completion. In the temperature range 1400–1550°C, we observe the formation of a second aluminum-containing phase: calcium cerium hexaaluminate consisting of long prismatic grains.

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Authors and Affiliations

  1. Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, Leninskii pr. 49, Moscow, 119991, Russia

    L. I. Podzorova, A. A. Il’icheva, O. I. Pen’kova, V. P. Sirotinkin, O. S. Antonova & A. A. Konovalov

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  1. L. I. Podzorova
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  2. A. A. Il’icheva
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  3. O. I. Pen’kova
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  4. V. P. Sirotinkin
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  5. O. S. Antonova
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  6. A. A. Konovalov
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Correspondence to L. I. Podzorova.

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Original Russian Text © L.I. Podzorova, A.A. Il’icheva, O.I. Pen’kova, V.P. Sirotinkin, O.S. Antonova, A.A. Konovalov, 2018, published in Neorganicheskie Materialy, 2018, Vol. 54, No. 5, pp. 475–481.

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Podzorova, L.I., Il’icheva, A.A., Pen’kova, O.I. et al. Phase Formation in Al2O3–ZrO2–CeO2 Nanopowders Modified with Calcium Cations. Inorg Mater 54, 454–459 (2018). https://doi.org/10.1134/S0020168518050102

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  • DOI: https://doi.org/10.1134/S0020168518050102

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