Effect of ZnO on (ferroelectric) fatigue retention and thermal stability of ferroelectric properties in lead free (K_0.5Na_0.5)(Nb_0.7Ta_0.3)O₃ ceramics.

ABSTRACT: This work investigates and reports the effect of ZnO addition on the ferroelectric properties of (K_0.5Na_0.5)(Nb_0.7Ta_0.3)O₃ (KNNT) ceramics prepared by a solid state reaction method. Though literature is abundant on the study of the effect of ZnO on the sinterability, microstructure and electrical properties of KNN based materials, the effect of ZnO on their ferroelectric properties has seldom been studied in detail, especially in KNNT. In the current study, 2, 4 and 6 wt% of ZnO was added to KNNT ceramics. The XRD results revealed ZnO addition has no effect on the crystal symmetry of KNNT. However, a ZnO secondary phase was found in KNNT ceramics with 4 and 6 wt% ZnO doping. An increase in grain size was observed with increases in the

SUBMITTER: P V 

PROVIDER: S-EPMC9074134 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature