本文采用固相反应法制备了一系列LiBiO2掺杂0.94(Na0.8K0.16Li0.04)0.5Bi0.5TiO3 -0.06BaTiO3压电陶瓷,并采用SEM、XRD等分析方法对所得产物的结构和电性能进行分析.SEM观测表明:随LiBiO2掺杂量的增加,晶粒尺寸增加.XRD分析显示,LiBiO2掺杂会导致Na2O相析出.铁电测试表明随着LiBiO2掺杂量的增加,剩余极化强度和矫顽场单调下降,样品从铁电相向反铁电相转变.压电测试结果显示:随着LiBiO2掺杂量增加,d33单调下降.与单独Li、Bi掺杂提高电性能相反,LiBiO2掺杂对提高电性能无益.
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