Piezoelectric properties of new ternary Bi1/2(Na, Li)1/2TiO3-(Bi1/2K1/2)TiO3-Ba0.85Ca0.15Ti0.90Zr0.10O3 ceramics

0.852[Bi-1/2(Na1-x Li (x) )(1/2)]TiO3-0.110(Bi1/2K1/2)TiO3-0.038Ba(0.85)Ca(0.15)Ti(0.90)Zr(0.10)O(3) (BNLT-BKT-BCTZ-x) new ternary piezoelectric ceramics were fabricated by the conventional solid-state method, and their piezoelectric properties as a function of the Li content were mainly investigated. A stable solid solution with a single perovskite structure has been formed, and the depolarization temperature (T (d)) of these ceramics was identified by using the temperature dependence of the dielectric loss. The T (d) value of these ceramics gradually decreases, while the T (m) value increases with increasing the Li content. The dielectric constant increases and the dielectric loss decreases with increasing the Li content, and an enhanced piezoelectric behavior of d (33)similar to 223 pC/N and k (p similar to)35.2 % has been demonstrated in these ceramics with x=0.06.