• R V Barde

      Articles written in Bulletin of Materials Science

    • Thermal and electrical properties of 60V2O5–5P2O5–(35−𝑥)B2O3–𝑥CeO2(1 ≤ 𝑥 ≤ 5) glasses

      R V Barde S A Waghuley

      More Details Abstract Fulltext PDF

      The samples of composition 60V2O5–5P2O5–(35−𝑥)B2O3–𝑥CeO2, 𝑥 = 1, 2, 3, 4 and 5 mol% were prepared by the melt-quench method. The prepared samples were characterized by X-ray diffraction, thermogravimetric-differential thermal analysis and impedance spectroscopy. The activation energies were evaluated using glass transition temperature (𝑇g) and peak temperature of crystallization (𝑇c). The dependence of activation energy on composition was discussed. AC conductivity of samples has been analysed. Electrical conductance and capacitance were measured over a frequency range of 20 Hz–1 MHz and a temperature range of 303–473 K. At room temperature, maximum value of electrical conductivity was observed to be 0.0024 S cm−1 for 𝑥 = 1.The samples show semiconducting features predominantly based on an ionic mechanism.

  • 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.