Dielectric Properties of BaTiO₃-KNbO₃ Composites

ABSTRACT

This paper is focused on dielectric properties of potassium niobate (KN) –barium titanate (BT) composites with artificial morphotropic phase boundary (MPB). Ceramics with highest concentration of KN showed a glassy behaviour below 300 K temperature. Also two relaxation processes were observed, one in MHz and second at GHz range. The relaxation process in the MHz range follows Vogel-Fulcher law. The nature of the GHz dispersion is assumed to be electro-mechanical resonance.

Funding

This research was funded by a grant (No. LJB-3/2016) from the Research Council of Lithuania. This research was performed in cooperation with the University of Yamanashi.