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Effect of Fe on the structure and electrical conductivity of sodium borosilicate glasses

Abstract

We report a synthesis and a characterization of iron-bearing sodium borosilicate glasses with Fe2O3 content lower than 10 mol %. Using the Mössbauer spectroscopy we demonstrate that Fe ions most probably have the tetrahedral oxygen environment for an iron oxide content higher than 5 mol %. Additionally, the Mössbauer results along with the X-ray diffraction studies indicate the magnetite nanocluster formation. The electric conductivity of iron-containing sodium borosilicate glasses is studied over a wide temperature range. The iron content impact on the dielectric permittivity and the electrical properties is discussed. Finally, the ionic conduction is identified in the high temperatures region and its physical origin is explained. A similar activation energy of the dc conductivity and the activation energy of the electrical relaxation suggest that both the relaxation and the conduction processes can be ascribed to the same type of entities.

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Publication details

The article was received on 30 Mar 2017, accepted on 02 Aug 2017 and first published on 04 Aug 2017


Article type: Paper
DOI: 10.1039/C7CP02042B
Citation: Phys. Chem. Chem. Phys., 2017, Accepted Manuscript
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    Effect of Fe on the structure and electrical conductivity of sodium borosilicate glasses

    A. Cizman, E. Rysiakiewcz-Pasek, M. Krupiński, M. Konon, T. Antropova and M. Marszalek, Phys. Chem. Chem. Phys., 2017, Accepted Manuscript , DOI: 10.1039/C7CP02042B

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