Abstract The Pb(Ni1/3Nb2/3)O3-Pb(ZrxTi1−x)O3 (PNN-PZT) piezoelectric ceramics with CuO and LiBiO2 doping were successfully fabricated by the low-temperature solid-state reaction to effectively restrain the PbO volatilization. The microstructure and electrical properties of the PNN-PZT ceramics were characterized. The experimental results reveal that the PNN-PZT ceramics are composed of a pure perovskite structure in which the rhombohedral and tetragonal phases coexist. Meanwhile, the good electric properties, including low dielectric loss, outstanding diffusion phase transition and palpable dielectric relaxation, are exhibited in PNN-PZT ceramics with 0.2 wt.% CuO and 1 wt.% LiBiO2 addition. This piezoceramic composition possibly provides a reference for the application of multi-layer piezoelectric actuators.

中文翻译：

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低温烧结PNN-PZT压电陶瓷的制备及性能

摘要 通过低温固相反应成功制备了掺杂CuO和LiBiO2的Pb(Ni1/3Nb2/3)O3-Pb(ZrxTi1-x)O3(PNN-PZT)压电陶瓷，有效抑制了PbO的挥发。表征了 PNN-PZT 陶瓷的微观结构和电学性能。实验结果表明，PNN-PZT陶瓷由菱形相和四方相共存的纯钙钛矿结构组成。同时，添加 0.2 wt.% CuO 和 1 wt.% LiBiO2 的 PNN-PZT 陶瓷表现出良好的电性能，包括低介电损耗、出色的扩散相变和明显的介电弛豫。该压电陶瓷组合物可能为多层压电致动器的应用提供参考。