Abstract
The results of studying the kinetics of homogeneous (spontaneous) and heterogeneous (catalyzed) crystal nucleation in silicate glass is presented for glasses in the Li2O–SiO2 system. Nucleation is catalyzed via the photosensitive mechanism by adding poorly soluble impurities, shifting the glass composition towards the higher content of one of the components (autocatalysis), and by passing steam through the glass melt. The fundamental characteristics of crystal nucleation are obtained. The composition ranges with the maximum and minimum steady-state crystal nucleation rates are identified.
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Original Russian Text © G.A. Sycheva, 2018, published in Fizika i Khimiya Stekla.
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Sycheva, G.A. Homogeneous and Heterogeneous Crystal Nucleation in Glass of the Li2O–SiO2 System. Glass Phys Chem 44, 183–191 (2018). https://doi.org/10.1134/S1087659618030161
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DOI: https://doi.org/10.1134/S1087659618030161
Keywords
- Li2O–SiO2 glass
- spontaneous nucleation
- critical nucleus size
- surface energy of critical nucleus
- difference between the Gibbs free energies of glass and a crystal
- catalyzed bulk nucleation
- effect of bubbles
- effect of water on the kinetics of crystal nucleation
- effect of poorly soluble impurities on crystal nucleation in glass