Synthesis and characterizations of lead free KNNT & Ni doped KNNT ceramics

Abstract

In order to replace the lead based ceramics with the same properties of piezoelectricity and other electrical properties, lead free ceramics like KNNT perovskites were developed.. The samples with KNNT and Ni-doped KNNT ceramics were prepared. KNNT-Ni was prepared by doping 1% Ni in KNNT:. Both types of samples were calcined and sintered in microwave furnace. Different characterization techniques like XRD, SEM etc were used to characterize these ceramics. Single perovskite phase formation was confirmed by the XRD study. Electrical properties such as dielectric constant and dielectric loss were studied as a function of temperature and frequency.