Temperature-insensitive electric-field-induced strain and enhanced piezoelectric properties of <001> textured (K,Na)NbO3-based lead-free piezoceramics

By texturing, a great enhancement of piezoelectric properties and temperature stability was achieved in KNN-based lead-free piezoceramics, which was ascribed to the wide temperature range of tetragonal phase and the stable ferroelectric domains. These favorable properties show its promising application for high-temperature actuators.266