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从晶体结构和微观组织入手，分析并讨论了掺Ｎｂ２Ｏ５量对３７．５Ｐｂ（Ｍｇ，Ｎｂ）Ｏ３－２５ＰｂＺｒＯ３－３７．５ＰｂＴｉＯ３材料的介电、压电性能的影响行为和影响机制。实验结果表明，当Ｎｂ２Ｏ５的添加量（摩尔比）ｒ（Ｎｂ２Ｏ５）＝１％时，材料有最好的压电性能（ｋｐ＝０．６２，εｒ＝４０００）。
Starting from the crystal structure and microstructure, the influence and influence mechanism of Nb2O5 content on the dielectric and piezoelectric properties of 37.5Pb (Mg, Nb) O3-25PbZrO3-37.5PbTiO3 were analyzed and discussed. The experimental results show that the material has the best piezoelectric properties (kp = 0.62, εr = 4000) when the amount of Nb2O5 is 1%.