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Formation of a surface layer of multicomponent lead-silicate glasses in hydrogen on heating

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X-ray electron spectroscopy and thermodynamic analysis are used to investigate the sequence of chemical transformations of the elements of a surface layer of silicate glass in the system PbO – BaO – Na2O – Al2O3 – SiO2 under heating in a hydrogen atmosphere. The process of thermal reduction of a multicomponent lead-silicate glass in hydrogen is a multistage process of diffusion and chemical interaction of lead with hydrogen. Reduction of lead is observed, the lead atoms bound with aluminum-oxygen groupings interacting being the first to interact with hydrogen after which the lead atoms in the silicon-oxygen structural units interact with hydrogen. The remaining components of the glass do not interact with hydrogen in the temperature range 375–475°C. The concentration profiles of the elemental distribution in the surface layer of the reduced glasses are determined.

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Authors and Affiliations

  1. Physicotechnical Institute of the Ural Branch of the Russian Academy of Sciences, Izhevsk, Russia

    O. M. Kanunnikova & O. Yu. Goncharov

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  1. O. M. Kanunnikova
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  2. O. Yu. Goncharov
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Translated from Steklo i Keramika, No. 2, pp. 12–14, February, 2009.

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Kanunnikova, O.M., Goncharov, O.Y. Formation of a surface layer of multicomponent lead-silicate glasses in hydrogen on heating. Glass Ceram 66, 53–56 (2009). https://doi.org/10.1007/s10717-009-9122-x

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  • DOI: https://doi.org/10.1007/s10717-009-9122-x

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