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    • Keywords

       

      Lead strontium titanate borosilicate glasses; infrared spectroscopy.

    • Abstract

       

      The infrared spectra (IR) of various glass compositions in the glass system, [(Pb𝑥Sr1–𝑥)O.TiO2]– [2SiO2.B2O3]–[BaO.K2O]–[La2O3], were recorded over a continuous spectral range (400–4000 cm-1) to study their structure systematically. IR spectrum of each glass composition shows a number of absorption bands. These bands are strongly influenced by the increasing substitution of SrO for PbO. Various bands shift with composition. Absorption peaks occur due to the vibrational mode of the borate network in these glasses. The vibrational modes of the borate network are seen to be mainly due to the asymmetric stretching relaxation of the B–O bond of trigonal BO3 units. More splitting is observed in strontium-rich composition.

    • Author Affiliations

       

      C R Gautam1 Devendra Kumar2 Om Parkash2

      1. Department of Physics, University of Lucknow, Lucknow 226 007, India
      2. Department of Ceramic Engineering, Institute of Technology, Banaras Hindu University, Varanasi 221 005, India
    • Dates

       
  • Bulletin of Materials Science | News

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