id="p0005">Pb-free ceramics with low temperature sintering (≤1020 °C) was developed.
id="p0010">We investigated the effects of (Sr0.95Ca0.05)TiO3 substitution on the NKL-NSTO3 ceramics.
id="p0015">The NKL-NSTO3 ceramics with 0.005<x (=(Sr0.95Ca0.05)TiO3 )<0.01 showed a coexistence of two phases.
id="p0020">The d33=310pC/N and kp=0.44 were obtained from the ceramics with x=0.01.