Influence of Sintering Temperature and Sintering Aid on Electrical Properties of (K, Na)NbO_3-LT Ceramics

摘要

In this paper, 0.95K_(0.5)Na_(0.5)NbO_3-0.05LiTaO_3 ceramics were synthesized by conventional mixed-oxide technique. To clarify the optimal sintering condition, three kinds of different temperature conditions were used. It was found that the samples sintered near 1130 °C had the best piezoelectric properties (d_(33)～155 pC/N). In addition, sintering aid such as K_(5.4)C_(1.3)Ta_(10)O_(29) was investigated to confirm whether it really benefited to the sintering process and increased the piezoelectric property of ceramics.