Effect of swift heavy ions on structural and optical properties of bismuth based alumino-borosilicate glasses

Ravneet Kaur, Surinder Singh, Kulvir Singh, O. P. Pandey

Research output: Contribution to journalArticlepeer-review

33 Scopus citations

Abstract

Borosilicate glass is considered to be one of the most suitable materials for immobilization of the high level radioactive waste (HLW). In the present investigation, glass of the composition Bi2O3 (15%)-Al2O3 (10%)-B2O3 (50%)-SiO2 (25%) was prepared by melting followed by quenching method. Optical and structural properties of these glasses were investigated using UV-visible absorption spectroscopy; X-ray diffraction and Fourier Transform Infrared (FTIR) spectroscopic techniques. Effects of heavy ion irradiation on glass network and structural units have been studied by irradiating glass thin film samples with heavy ions Li3+ (50 MeV) and Ag14+(180 MeV) at different fluence rates ranging from 1012 ions/cm2 to 1014 ions/cm2. Irradiation of materials by swift heavy ions (SHI) results in highly excited lattice atoms due to inelastic collisions with atomic electrons. Atomic displacements and structural modifications of such a lattice, brings out interesting changes in the materials. It is seen that irradiation causes significant changes in compaction of the glass network. Changes in the atomic structure before and after the irradiation are observed and explained.

Original languageEnglish
Pages (from-to)23-30
Number of pages8
JournalRadiation Physics and Chemistry
Volume86
DOIs
StatePublished - 1 May 2013
Externally publishedYes

Keywords

  • Bismuthate glass
  • Borosilicate glass
  • IR spectroscopy
  • Ion irradiation
  • Optical band gap
  • Refractive index

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