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Volumetric nucleation of crystals catalyzed by Cr2O3 in glass based on furnace slags

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Abstract

The features of the volumetric nucleation of crystals in glass obtained by melting furnace slags with the additive of SiO2, chromium sesquioxide Cr2O3, are studied by the methods of differential thermal and Xray phase analysis and optical microscopy. Upon the introduction of Cr2O3 as the catalytic additive, two phases are sequentially formed in the glass: magnesiochromite (MgO · Cr2O3) and diopside (CaO · MgO · 2SiO2). The characteristics of homogeneous and heterogeneous crystallization are determined: the stationary nucleation rate, nonstationary nucleation time, crystal growth rate, and their temperature dependences are obtained. Practical recommendations on the use of the obtained glass are given.

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Authors and Affiliations

  1. Grebenshchikov Institute of Silicate Chemistry, Russian Academy of Sciences, nab. Makarova 2, St. Petersburg, 199034, Russia

    G. A. Sycheva, I. G. Polyakova & T. G. Kostyreva

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  1. G. A. Sycheva
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  2. I. G. Polyakova
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  3. T. G. Kostyreva
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Correspondence to G. A. Sycheva.

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Original Russian Text © G.A. Sycheva, I.G. Polyakova, T.G. Kostyreva, 2016, published in Fizika i Khimiya Stekla.

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Sycheva, G.A., Polyakova, I.G. & Kostyreva, T.G. Volumetric nucleation of crystals catalyzed by Cr2O3 in glass based on furnace slags. Glass Phys Chem 42, 238–245 (2016). https://doi.org/10.1134/S1087659616030147

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  • DOI: https://doi.org/10.1134/S1087659616030147

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