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Composite Zircon Ceramics Based on Raw Materials Activated by Ammonium Bifluoride

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Refractories and Industrial Ceramics Aims and scope

The paper presents the results of studying the processes of synthesizing baddeleyite-zircon ceramics based on fluorinated plasma dissociated and natural zircon. It was found that obtaining densely sintered ceramics based on fluorinated natural zircon requires the addition of CaO to stabilize free ZrO2 contained in it. The addition of Y2O3 to the plasma dissociated zircon-based ceramic materials makes it possible to reduce the sintering temperature from 1,600 to 1,500°C. Obtaining highly fluorinated plasma dissociated zircon-based ceramics is complicated due to the formation of excessive amount of ZrF4.

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Authors and Affiliations

  1. Federal State Autonomous Educational Institution of Higher Education, “National Research Tomsk Polytechnic University”, Tomsk, Russia

    Sh. M. Sharafeev & V. I. Vereshchagin

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  1. Sh. M. Sharafeev
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  2. V. I. Vereshchagin
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Correspondence to Sh. M. Sharafeev.

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Translated from Novye Ogneupory, No. 6, pp. 44 – 50, June, 2021

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Sharafeev, S.M., Vereshchagin, V.I. Composite Zircon Ceramics Based on Raw Materials Activated by Ammonium Bifluoride. Refract Ind Ceram 62, 337–342 (2021). https://doi.org/10.1007/s11148-021-00604-6

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  • DOI: https://doi.org/10.1007/s11148-021-00604-6

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