研究了在Pb(Zr0.52Ti0.48)O3基体中同时掺入高价离子Y3+和Nb5+后,固溶体Pb1.03-xYx[(Zr0.52Ti0.48)1-x]O3(x=0～0.05)的晶相、微观结构及电学性能.实验结果表明:共掺的Y3+和Nb5+离子抑制晶粒生长,改善材料的烧结致密度;随掺杂量x的增加,晶格常数c和晶格四方度c/a减小,晶相由四方相逐渐向菱形相转变,影响晶相和晶格参数的主要因素是Y3+离子;当掺杂量x=0.015时,材料的电性能最佳(介电常数ε33/εo=1366,压电系数d31=-139.8pN/V,e31=-9.2N/V·M,机电耦合系数kp=0.60和剩余极化值Pr=44).
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