Abstract
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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