Synthesis and Conductivity of Heterogeneous Compositions Bi4V2 – хFeхO11 – d/n% FeOу (m% Al2O3)

A. A. Krylov; Крылов А. А.; Yu. V. Emel’yanova; Емельянова Ю. В.; E. S. Buyanova; Буянова Е. С.; S. A. Petrova; Петрова С. А.

doi:10.31857/S0424857023040102

Synthesis and Conductivity of Heterogeneous Compositions Bi4V2 – хFeхO11 – d/n% FeOу (m% Al2O3)

Authors: Krylov A.A.¹, Emel’yanova Y.V.¹, Buyanova E.S.¹, Petrova S.A.²
Affiliations:
1. Ural Federal University named after the First President of Russia B.N. Yeltsin
2. Institute of Metallurgy, Ural Branch, Russian Academy of Science
Issue: Vol 59, No 4 (2023)
Pages: 216-224
Section: Articles
URL: https://ruspoj.com/0424-8570/article/view/671063
DOI: https://doi.org/10.31857/S0424857023040102
EDN: https://elibrary.ru/AOLJKW
ID: 671063

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Abstract

The structure and electrophysical characteristics of Bi4V2 – хFeхO11 – δ (BIFEVOX, where х = 0.3, 0.5) and its heterogeneous mixtures Bi4V2 – хFeхO11 – δ/n% FeOy and Bi4V2 – хFeхO11 – δ/m% Al2O3 are studied by varying their composition and the thermodynamic parameters of the environment. The crystallochemical parameters of individual compounds are calculated. The phase and elemental composition of samples is assessed using the XRD method and the scanning electron microscopy with energy-dispersive spectroscopic microanalysis; for individual phases, the absence of phase transitions is observed. The conductivity of materials is studied by the impedance spectroscopy. No composite effect is observed in these systems.

Keywords

iron oxide, aluminum oxide, heterogeneous mixture, crystal structure, conductivity

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