Microstructure and thermal stability properties of lead-free ferroelectric piezoelectric materials
The environmentally friendly ceramics of (K <sub>0.43</sub>Na <sub>0.51</sub>Li <sub>0.06</sub>)(Nb <sub>0.85</sub>Ta <sub>0.09</sub>Sb <sub>0.06</sub>)O <sub>3</sub> + + 2 mas. % NiO were prepared on conventional ceramic technology. Phase transformations, grain structure, dielectric and piezoelectric properties at T = (300-700) K of this ceramics were investigated. Suggested that the high density ceramics, strength interphase boundaries and thermal stability properties associated with the crystallographic and chemical properties of the modifie. Possible applications of the investigated lead-free piezoelectric materials have been proposed.