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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
  • 32 Downloads

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.

Keywords

Silicate Glass Microchannel Plate Secondary Electron Emission Sodium Oxide Barium Oxide 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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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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