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


Cite item

Full Text

Open Access Open Access
Restricted Access Access granted
Restricted Access Subscription Access

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–xZrxO3. 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.

About the authors

O. N. Ivanov

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

Author for correspondence.
Email: Ivanov.Oleg@bsu.edu.ru
Russian Federation, Belgorod

I. V. Sudzhanskaya

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

Email: Ivanov.Oleg@bsu.edu.ru
Russian Federation, Belgorod

R. A. Lyubushkin

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

Email: Ivanov.Oleg@bsu.edu.ru
Russian Federation, Belgorod

Supplementary files

Supplementary Files
Action
1. JATS XML

Copyright (c) 2016 Springer Science+Business Media New York