Glass and Ceramics

, Volume 66, Issue 1–2, pp 53–56 | Cite as

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

  • O. M. Kanunnikova
  • O. Yu. Goncharov
Science for Glass Production

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.


Silicate Glass Microchannel Plate Secondary Electron Emission Sodium Oxide Barium Oxide 
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Copyright information

© Springer Science+Business Media, Inc. 2009

Authors and Affiliations

  • O. M. Kanunnikova
    • 1
  • O. Yu. Goncharov
    • 1
  1. 1.Physicotechnical Institute of the Ural Branch of the Russian Academy of SciencesIzhevskRussia

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