摘要
Li0.12Na0.88NbO3-modified Bi0.50Na0.50TiO3 [(1xA0;鈭?#xA0;x)BNT-xLNN] lead-free piezoelectric ceramics were prepared by the conventional solid-state solid method. Effects of LNN content on the electrical properties of (1xA0;鈭?#xA0;x)BNT-xLNN ceramics were investigated. The relaxor behavior of (1xA0;鈭?#xA0;x)BNT-xLNN ceramics gradually enhances, and the depolarization temperature decreases with increasing LNN content. The largest 蓻m value and the lowest dielectric loss are demonstrated for the ceramic with xxA0;=xA0;0.02. Moreover, the (1xA0;鈭?#xA0;x)BNT-xLNN ceramic with xxA0;=xA0;0.02 also has an enhanced piezoelectric behavior of d33xA0;鈭?#xA0;113xA0;pC/N and kpxA0;鈭?#xA0;21.6%. Therefore, the introduction of LNN could be an effective way to improve the electrical behavior of BNT ceramics.