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The Non-Isothermal Devitrification of Glasses in the SrO·4GeO2−BaO·4GeO2 Composition Range

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Abstract

The effect of replacing SrO by BaO on the glass transition temperature and on devitrification behaviour in a series of glasses in the strontium tetragermanate — barium tetragermanate composition range has been studied by differential thermal analysis, X-ray diffraction and Fourier-transform infrared spectra. All glasses studied exhibit internal crystal nucleation. The progressive replacing of SrO by BaO causes the decrease of the glass transition temperature. Solid solutions between SrGe4O9 and BaGe4O9 were found to crystallize in glass containing both SrO and BaO. The effect of the specific surface of the glass samples on devitrification processes has been also pointed out.

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Authors and Affiliations

  1. Department of Materials and Production Engineering, University ‘Federico II’ Piazzale Tecchio, 80125, Napoli, Italy

    M. Catauro & G. Laudisio

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  1. M. Catauro
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  2. G. Laudisio
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Catauro, M., Laudisio, G. The Non-Isothermal Devitrification of Glasses in the SrO·4GeO2−BaO·4GeO2 Composition Range. Journal of Thermal Analysis and Calorimetry 58, 617–623 (1999). https://doi.org/10.1023/A:1010156612196

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  • DOI: https://doi.org/10.1023/A:1010156612196

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