• MEENA MALIK

      Articles written in Bulletin of Materials Science

    • Crystallization of BaFe$_{12}$O$_{19}$ magnetic particles in Fe$_2$O$_3$–B$_2$O$_3$– Bi$_2$O$_3$–BaO–LiCl glass ceramics

      MEENA MALIK ASHIMA HOODA ASHISH AGARWAL SATISH KHASA

      More Details Abstract Fulltext PDF

      The glasses with composition xFe$_2$O$_3$(55-x)B$_2$O$_3$–10Bi$_2$O$_3$–25BaO–10LiCl (where x = 0.0, 5.0, 7.0, 10.0,12.0 and 15.0) are fabricated via melt-quench technique. Structural and physical properties of as-prepared and thermally treated glass samples have been explored using X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy and density measurements. The amorphous nature and formation of crystallites (BiB$_3$O$_6$ and BaFe$_{12}$O$_{19}$) after giving thermal treatment have been confirmed by both XRD and FTIR spectra. FTIR spectra reveal that broad peaks becamesharp on thermal treatment and fraction of 4-coordinated boron atoms N$_4$ increases for as-prepared as well as thermally treated samples as iron content increases, which suggest participation of iron ions in glass network. Variation in density and molar volume with iron content confirm modification in glass network based on ionic size of modifier. Scanning electron microscope images show formation of glass crystallites in thermally treated glass sample.

  • Bulletin of Materials Science | News

    • Dr Shanti Swarup Bhatnagar for Science and Technology

      Posted on October 12, 2020

      Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
      Chemical Sciences 2020

      Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
      Physical Sciences 2020

    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

      Click here for Editorial Note on CAP Mode

© 2021-2022 Indian Academy of Sciences, Bengaluru.