• M Soylak

      Articles written in Bulletin of Materials Science

    • Synthesis and characterization of 𝛽 type solid solution in the binary system of Bi2O3–Eu2O3

      O Turkoglu M Soylak I Belenli

      More Details Abstract Fulltext PDF

      We have investigated Bi2O3–Eu2O3 binary system by doping with Eu2O3 in the composition range from 1 to 10 mole% via solid state reactions and succeeded to stabilize 𝛽-Bi2O3 phase which is metastable when pure. Stability of 𝛽-Bi2O3 polymorph was influenced by heat treatment temperature. Tetragonal type solid solution was obtained in 3–6 mole% addition range when annealed at 750°C and the range was 2–7 mole% when annealed at 800°C. We have also carried out investigations on lattice parameters, microstructural properties and elemental compositions of this 𝛽 type solid solution for each doping ratio. Lattice parameters increased with amount of Eu2O3 addition. Our experimental observations strongly suggested that oxygen deficiency type non-stoichiometry is present in doped 𝛽 type solid solutions.

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      Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
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      Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
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