Structure and electrical properties of (Bi1/2Na1/2)0.94−x(Li1/2Ce1/2)xBa0.06TiO3 lead-free piezoelectric ceramics

Lead-free piezoelectric ceramics BNT-BT6-LCx has been successfully synthesized by the conventional solid-state reaction method. All BNT-BT6-LCx ceramics form the pure perovskite phase structure, and no obvious change in the crystal structure is observed with the addition of (Li1/2Ce1/2). Transition temperature Tm is found to be no obvious change and Td decreases continuously with x. Composition with x=0.010 has shown the optimum ferroelectric and piezoelectric properties with low value of Ec, which are as follows: Pr=32.65 μC/cm2, Ec=41 kV/cm and d33=163 pC/N.