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Dielectric Relaxation and Ionic Conductivity of a Ceramic System SrTiO3/Y0.1Zr0.9O2

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Aceramic material with the composition 0.5SrTiO3—0.5Y0.1Zr0.9O2 was obtained and the characteristics of its dielectric properties and electric conductivity determined. It was found that the material consists of two phases: the cubic \( Fm\overline{3}m \) phase of yttrium-stabilized zirconium dioxide and the tetragonal I4/mcm phase of the solid solution SrTi1–x Zr x O3. Dielectric relaxation with activation energy about 1.1 eV, characteristic for titanium- containing compounds with perovskite structure, was found at temperature T > 500 K. Above ~ 700 K the electric conductivity of the experimental samples increases significantly, which could be due to an increase of the ionic conductivity. The activation energy of electric conduction was about 1.2 eV, which agrees with the value of the activation energy of ionic conduction of zirconium dioxide.

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The Ministry of Education and Science of the Russian Federation provided financial support for this work under contract No. 14.594.21.0010, unique code RFMEFI59414X0010; project No. 3.308.2014/K). The instrumentation resources of the Center for the Collective Use of the Scientific Equipment “Diagnostics of the Structure and Properties of Nanomaterials” was used within the framework of the contract No. 14.594.21.0010 in the conducting research.

One of us (O. N. Ivanov) also participated in the research as a director within the framework of the implementation of the measures Organization of Scientific Research of the government task given to institutions of higher learning and scientific organizations in the sphere of scientific activity (project No. 2014/420-1).

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Authors and Affiliations

  1. Belgorod State National Research University, Center for the Collective Use of Scientific Equipment “Diagnostics of Structure and Properties of Nanomaterials,”, Belgorod, Russia

    O. N. Ivanov, I. V. Sudzhanskaya & R. A. Lyubushkin

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  1. O. N. Ivanov
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  2. I. V. Sudzhanskaya
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  3. R. A. Lyubushkin
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Correspondence to O. N. Ivanov.

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Translated from Steklo i Keramika, No. 10, pp. 27 – 31, October, 2015.

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Ivanov, O.N., Sudzhanskaya, I.V. & Lyubushkin, R.A. Dielectric Relaxation and Ionic Conductivity of a Ceramic System SrTiO3/Y0.1Zr0.9O2 . Glass Ceram 72, 376–380 (2016). https://doi.org/10.1007/s10717-016-9793-z

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  • DOI: https://doi.org/10.1007/s10717-016-9793-z

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