A. V. Pavlenko, A. G. Abubakarov, L. A. Reznichenko, I. M. Aliev, L. A. Shilkina, A. V. Nazarenko, I. A. Verbenko, G. M. Konstantinov, “Granular structure and dielectric characteristics of the (Ba$_{0.5}$Sr$_{0.5}$)Nb$_2$O$_6$ ceramics”, Zhurnal Tekhnicheskoi Fiziki, 2015, Volume 85, Issue 8,Pages 80

This article is cited in 8 papers

Physical science of materials

Granular structure and dielectric characteristics of the (Ba$_{0.5}$Sr$_{0.5}$)Nb$_2$O$_6$ ceramics

A. V. Pavlenko^ab, A. G. Abubakarov^a, L. A. Reznichenko^a, I. M. Aliev^a, L. A. Shilkina^a, A. V. Nazarenko^b, I. A. Verbenko^a, G. M. Konstantinov^a

^a Research Institute of Physics, Southern Federal University, Rostov-on-Don
^b Southern Research Center of the Russian Academy of Sciences, Rostov-on-Don

Abstract: The granular structure and the dielectric characteristics of the ceramic (Ba$_{0.5}$Sr$_{0.5}$)Nb$_2$O$_6$ solid solution are studied. The ceramic is found to be characterized by a homogeneous, dense, almost pore-free microstructure consisting of crystallites 5–10 $\mu$m in size. At room temperature, (Ba$_{0.5}$Sr$_{0.5}$)Nb$_2$O$_6$ exhibits elongated hysteresis loops. The ceramic undergoes a diffuse phase transition from a paraelectric state into the state of relaxor ferroelectric in the temperature range $T$ = 340–385 K upon cooling. Scaling is shown to weakly change the ceramic characteristics of the material.

Received: 07.11.2014