中文摘要：

对无铅压电陶瓷0．94[（Na0．96-xKxLi0．04）0．5Bi0．5]TiO3-0．06Ba（Zr0．055Ti0．945）O3的性质随K含量的变化进行了系统研究，获得压电应变常数d33高达185pC／N的0．94[（Na0．96-xKxLi0．04）0．5Bi0．5]TiO3-0．06Ba（Zr0．055Ti0．945）O3压电陶瓷。随着K掺杂量的增加，该陶瓷材料的介电温谱峰值向右明显移动，其介电峰温度明显升高。

英文摘要：

Lead - free piezoelectric ceramics 0.94[（Na0.96-xKxLi0.04）0.5Bi0.5]TiO3-0.06Ba（Zr0.055Ti0.945）O3 were fabricated with the variation of K content and their dielectric and piezoelectric characteristics were also investigated. The 0.94[（Na0.96-xKxLi0.04）0.5Bi0.5]TiO3-0.06Ba（Zr0.055Ti0.945）O3 ceramics with a piezoelectric strain constant d33 as high as 185 pC/N are obtained. The results show that the peak in the dielectric constant curve versus temperature moves rightward with the increase of K content. Accordingly, the temperature corresponding to maximum dielectric constant for the ceramics increases slightly.