文摘
Effects of sintering temperature on the microstructure and electrical properties of (K0.40Na0.60)0.94Li0.06Nb0.94SbO3 (KNLNS) lead-free ceramics are investigated. The grain size gradually becomes larger with increasing sintering temperature from 1055 掳C to 1105 掳C, and the piezoelectric property could be enhanced by optimizing their sintering temperature. The ceramic sintered at 1075 掳C has optimum electrical properties, i.e., d33~272 pC/N, kp~43.5%, 蔚r~1152, tan 未~0.026, and TC~346 掳C. These results show that the sintering temperature can optimize electrical properties of KNLNS ceramics.