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      Permanent link:
      https://www.ias.ac.in/article/fulltext/boms/029/04/0339-0345

    • Keywords

       

      Combustion synthesis; bismuth oxides; oxide–ion conductors.

    • Abstract

       

      Cubic fluorite related Bi1–𝑥Ln𝑥O1.5 (Ln = Y and La–Yb) phases are synthesized by solutioncombustion method using glycine as the fuel. The cubic fluorite phase is stabilized with 25 mole% of rare earth cations. The lattice parameter of cubic phase increases linearly with size of the lanthanide ion. The synthesized powders are nano-metric in size and exhibit excellent compactability and reach 98% densification even on short period of sintering. The oxides with relatively larger cations Nd, Sm, Eu, Pr and Gd with 25 mole% composition transform to rhombohedral structure while others retain cubic upon sintering. All the phases show high oxide–ion conductivity and the values obtained are in good agreement with the reported values.

    • Author Affiliations

       

      Manjunath B Bellakki1 A S Prakash1 C Shivakumara1 M S Hegde1 A K Shukla2

      1. Solid State and Structural Chemistry Unit, Indian Institute of Science, Bangalore 560 012, India
      2. Central Electrochemical Research Institute, Karaikudi 630 006, India

    • Dates

       
      Published
      August 2006
      Manuscript received
      24 May 2006

  • 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

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