(1-x)K_(0.48)Na_(0.52)NbO_3-xBi_(0.45)Nd_(0.05)(Na_(0.92)Li_(0.08))_(0.5)ZrO_3无铅压电陶瓷相结构及压电性能

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为了在获得较高压电性能的同时又不大大降低陶瓷的居里温度(TC),设计和制备了Bi_(0.45)Nd_(0.05)(Na_(0.92)-Li_(0.08))_(0.5)ZrO_3改性的K_(0.48)Na_(0.52)NbO_3系无铅压电陶瓷((1–x)KNN-xBNNLZ),研究了BNNLZ含量对KNN基无铅压电陶瓷相结构和电学性能的影响。研究结果表明,所有陶瓷样品均具有较高的居里温度T_C(〉300℃)。随着BNNLZ含量的增加,陶瓷的正交-四方相变温度(T_(O-T))不断向低温方向移动,而三方–正交
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