• Synthesis and structural characterization of (Bi2O3)1–𝑥 (Y2O3)𝑥 and (Bi2O3)1–𝑥 (Gd2O3)𝑥 solid solutions

    • Fulltext

       

        Click here to view fulltext PDF


      Permanent link:
      https://www.ias.ac.in/article/fulltext/boms/027/01/0019-0022

    • Keywords

       

      Fast ion conductors; fluorite structure; fuel cell materials.

    • Abstract

       

      Solid solution series, (Bi2O3)1–𝑥 (Y2O$_3)𝑥 and (Bi2O$_3)1–𝑥 (Gd2O$_3)𝑥, for 𝑥 = 0.10, 0.20, 0.30 and 0.40 were synthesized by standard ceramic technique. The structural phase characterization was carried out using X-ray powder diffraction technique. It was found that the solid solution containing 20–40 mole% of Y2O3 had face-centred cubic structure. All samples of the solid solution series, (Bi2O3)1–𝑥 (Gd2O3)𝑥, had rhombohedral single phase in the concentration range 0.10 ≤ 𝑥 ≤ 0.40. Lattice parameters of fcc phase of Y2O3 doped samples were calculated from the X-ray diffraction data. The lattice constant `𝑎’ gradually decreases with increasing content of dopant concentration (𝑥) for the Y2O3 doped system and obeys Vegard’s rule. The unit cell parameters for the (Bi2O3)1–𝑥 (Gd2O3)𝑥 doped samples showing rhombohedral phase were obtained on hexagonal setting.

    • Author Affiliations

       

      Srikant Ekhelikar1 G K Bichile1

      1. Department of Physics, Dr Babasaheb Ambedkar Marathwada University, Aurangabad 431 004, India
    • Dates

       
  • 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.