A three-component ceramic material based on the ZrO2 - SrTiO3 - BiScO3 system has been obtained, its phase composition, microstructure features have been established, and the temperature dependence of the electrical conductivity has been studied. It was found that at room temperature the material consists of a cubic phase with a space group of symmetry Fm3m, corresponding to the cubic modification of zirconium dioxide, and a solid solution consisting of a nonpolar cubic phase with Pm3m symmetry and a polar tetragonal phase with P4mm symmetry and characteristic of the two-component system ZrO 2 ? SrTiO 3 ? BiScO 3 . The presence of these phases is confirmed by the results of studying the microstructure and elemental composition of the samples by scanning electron microscopy. It was found that above a temperature of ~ 750 K, the specific electrical conductivity of the samples under study increases significantly
Kalinovich D.F., Kuznetsova L.I., Denisenko E.T. Zirconium dioxide: properties and applications (review of foreign literature) // Powder metallurgy. 1987.? 11, p. 98? 104.
Garsia-Barriocanal J., Rivera-Calzada A., Varela M. et al. Colossal ionic conductivity at interfaces of epitaxial ZrO 2 : Y 2 O 3 / SrTiO 3 heterostructures // Chem. Phys. Chem. 2009. V. 10. P. 676? 680.
Pennycook T., Oxley MP Seeing oxygen disorder in YSZ / SrTiO 3 colossal ionic conductor heterostructures using EELS // Eur. Phys. J. Appl. Phys. 2011. V. 54. P. 3507? 3511.
Zaitsev NV, Smirnova EP, Lemanov VV Symmetry and lattice parameter of SrTiO 3 ? PbTiO 3 solid solutions // Phys. 2007.Vol. 49.P. 488? 489.
EP Smirnova, AV Sotnikov, NV Zaitseva, et al. Relaxation behavior of SrTiO 3 ? LiNbO 3 solid solutions // FTT. 2008.Vol. 50.P. 119? 122.
Lemanov VV, Smirnova EP, Sotnikov AV, Weihnacht M. Dielectric relaxation in SrTiO 3 ? SrMg 1/3 Nb 2/3 O 3 and SrTiO 3 ? SrSc 1/3 Ta 2/3 O 3 solid solutions // Appl. Phys. Lett. 2000. V. 77. P. 4205? 4207.
Ivanov O. N., Danshina E. P., Sirota V. V., Tarasova I. D. Formation of ceramic solid solutions in the SrTiO 3 ? BiScO 3 / / Izvestiya RAN. Ser. Physical. 2010.Vol. 74.P. 1312? 1314.
Ivanov O., Danshina E., Tuchina Y., Sirota V. Ferroelectricity in SrTiO 3 ? BiScO 3 system // Physica Stat. Sol. (b). 2011. V. 248. P. 1006? 1009.
Ivanov ON, Danshina EP, Sirota VV, Tuchina Yu.S. > // Letters ZhTF. 2010.Vol. 36.P. 85? 92.
Ivanov O. N., Lyubushkin R. A., Trusova Ya. V., Danshina E. P. Physical and technological factors determining the density of composite nanostructured ceramics of the Y? ZrO 2 ? Al 2 O 3 // Glass and ceramics. 2012.? 1.S. 15? 19.
Ivanov ON, Lyubushkin RA, Trusova Ya. V., Dan? Shina EP Physical and technological factors determining Y? ZrO 2 ? Al 2 O 3 composite nanostructured ceramic density // Glass and Ceram. 2012. V. 69. N 1? 2.P. 16? 19.
Ivanov ON, Lyubushkin RA, Sirota VV Obtaining and properties of zirconium ceramics from nanosized powder of zirconium dioxide // Glass and ceramics. 2011.? 2.P. 25? 28.
Cross LE Relaxor ferroelectrics // Ferroelectrics. 1994. V. 151. P. 305? 320.
Zavodinsky VG On the mechanism of ionic conductivity in stabilized cubic zirconium dioxide // FTT. 2004.Vol. 46.? 3.S. 441? 445.
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