A three-component ceramic material is obtained in the system ZrO2–SrTiO3–BiScO3; its phase composition and microstructure particularities are determined; and, the temperature dependence of the conductivity is studied. It is found that at room temperature the material consists of a cubic phase with space symmetry group Fm3m, corresponding to the cubic modification of zirconium dioxide, and a solid solution consisting of nonpolar cubic phase with Pm3m symmetry and polar tetragonal phase with P4mm symmetry characteristic for a two-component SrTiO3–BiScO3. An investigation of the microstructure and elemental composition of samples by means of scanning electron microscopy confirms the presence of these phases. It is found that above the temperature about 750 K the conductivity of the experimental samples increases significantly.
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This work was supported by the RFFI and the government of Belgorod Oblast (contract No. NK 14-41-08032\15r_ofi_m) and the RF Ministry of Science and Education (contract No. 14.594.21.0010, unique code RFMEFI59414X0010; the hardware resources of the Center for the Collective Use of Scientific Apparatus ‘Diagnostics of the Structure and Properties of Nanomaterials’ were used within the framework of the research conducted under this contract).
One of us (O. N. Ivanov) also participated in the research as director for compliance with the measures ‘Organization of Scientific Research’ for the government task given to institutions of higher learning and scientific organizations in the sphere of scientific work (contract No. 2014/420-1).
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Translated from Steklo i Keramika, No. 11, pp. 22 – 25, November, 2015.
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Ivanov, O.N., Sudzhanskaya, I.V. & Yapryntsev, M.N. Manufacture, Structure, and Electric Conductivity of ZrO2–SrTiO3–BiScO3 Ceramics. Glass Ceram 72, 413–416 (2016). https://doi.org/10.1007/s10717-016-9800-4
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DOI: https://doi.org/10.1007/s10717-016-9800-4