Structure, ferroelectric and local piezoelectric properties of KNN-based perovskite ceramics
E. D. Politova, Г. М. Калева, А. В. Мосунов, N. V. Sadovskaya, Д. А. Киселев, A. M. Kislyuk, Т. S. Ilina, S. Yu. Stefanovich, E. A. Fortalnova
Abstract
Structure, microstructure, dielectric, ferroelectric, and local piezoelectric properties of perovskite ceramics in the systems (1-x)(K0.5Na0.5)NbO3 – x(Bi0.5Na0.5)TiO3 (x = 0 ÷ 0.1) and (1-x)(K0.5Na0.5)NbO3 – x(Bi0.5Na0.5)ZrO3 (x = 0.01 ÷ 0.05) have been studied. Improvement of dielectric parameters and effective d33 piezoelectric coefficient was obtained in compositions with x = 0.03 and 0.05, correspondingly.
Topics & Concepts
Materials sciencePiezoelectricityDielectricFerroelectricityMicrostructurePiezoelectric coefficientCeramicPerovskite (structure)Composite materialOptoelectronicsChemical engineeringEngineeringFerroelectric and Piezoelectric MaterialsMicrowave Dielectric Ceramics SynthesisMultiferroics and related materials