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中文摘要：
探讨了MnO2和Nb2O5掺杂对Pb（Mn1/3Sb2/3）0.05Zr0.47Ti0.48O3（PMSZT）材料相组成、显微结构、电性能及温度稳定性的影响.结果发现：合成温度900℃,可以得到钙钛矿结构;随着掺杂量的增大,四方相的含量减少,准同型相界向三方相移动;当MnO2过量0.1%,Nb2O5掺杂0.05%（均为质量分数）时,εT33/ε0,d33和Kp达到最佳值;随着MnO2和Nb2O5掺杂量增加,Qm值下降,谐振频率变化率随温度变化由正到负.
英文摘要：
The Effects of MnO2 and Nb2O5 adding on the crystallographic phase, microstructure, electric-properties and temperature stability of Pb（Mn1/3Sb2/3）0.05Zr0.47Ti0.48O3（ PMSZT）materials have been studied. The results showed that the pure perovskitic structure was obtained at calcination of 900℃. With the adding increasing, the amount of rhombohedral phases was increasing, and the MPB was correspondingly shifted to a rhombohedral phase. The ε33^T/ε0, d33 and Kp of the samples approached the maximum value as MnO2 of 0. 1wt% and Nb2O5 of 0.05wt% were doped. The Qm value decreased and the variation of resonant frequency changed from positive to negative with the increasing of MnO2 and Nb2O5 adding and temperature.
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