Dielectric and acoustic properties of modified barium titanate ceramics

Abstract

A study of cobalt doping effect on the dielectric response and elastic properties of Ba_0.95Pb_0.05TiO₃ solid solution within the range of 20–200 °C is reported. The results of a study of the dielectric permittivity, dielectric loss and elastic parameters in the samples of ceramic Ba_0.95Pb_0.05TiO₃+xCo₂O₃ in the range of ferroelectric phase transition are presented. Modifying by admixture of Co is found to change the thermal anomalies of elastic and dielectric properties substantially, as well as to shift the ferroelectric phase transition temperature.

Keywords:

• Perovskite
• ferroelectrics
• barium titanate
• doping

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

This work was supported in part by the Ministry of Education and Science of the Russian Federation.