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.
Volume 44, 2021
Continuous Article Publishing mode
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
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