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The Influence of Manganese Oxide on the Sintering and Properties of the Eutectic Ceramics of the ZrO2–Al2O3–SiO2 System

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Abstract

The sintering, microstructure, and phase composition of the eutectic ceramics of the ZrO2–Al2O3–SiO2 system with an MnO additive have been studied. It has been shown that the additive contributes to the decrease in the sintering temperature to 1250–1350°С. The synthesized materials have a high content of the tetragonal phase, a fine crystalline structure with a grain size of 100–600 nm, and high flexural strength up to 420 MPa. The developed low-temperature materials can find application in mechanical engineering as high-temperature machine parts and refractory materials.

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Funding

Synthesis of nanodispersed ceramic powders, fabrication and study of the microstructure and phase composition of zirconia-based ceramics were supported by Program of basic research no. 34P of the Presidium of the Russian Academy of Sciences. Investigation of the sintering of low-temperature ceramics was supported by the Russian Foundation for Basic Research (project no. 18–9–11053mk). Studying the porosity and mechanical properties was supported through a through a grant from the Council for Grants of the President of the Russian Federation for Support of Young Scientists (grant no. MK-5661.2018.8).

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Authors and Affiliations

  1. Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, 119334, Moscow, Russia

    V. V. Smirnov, S. V. Smirnov, T. O. Obolkina, O. S. Antonova, M. A. Goldberg &  S. M. Barinov

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  1. V. V. Smirnov
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  2. S. V. Smirnov
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  3. T. O. Obolkina
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  4. O. S. Antonova
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  5. M. A. Goldberg
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  6. S. M. Barinov
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Correspondence to V. V. Smirnov.

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Translated by G. Kirakosyan

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Smirnov, V.V., Smirnov, S.V., Obolkina, T.O. et al. The Influence of Manganese Oxide on the Sintering and Properties of the Eutectic Ceramics of the ZrO2–Al2O3–SiO2 System. Dokl Chem 486, 160–163 (2019). https://doi.org/10.1134/S0012500819060041

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  • DOI: https://doi.org/10.1134/S0012500819060041

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