基于Pb(Sb1/2Nb1/2)O3-Pb(ZrTi)O3的高灵敏度压电陶瓷研究

摘要/Abstract

摘要： 改善锆钛酸铅(PZT)压电陶瓷灵敏度并增强其在静水压下的稳定性具有重要的实际意义。本文采用传统固相反应法,制备了xPb(Sb_1/2Nb_1/2)O₃-(1-x)Pb(Zr_0.52Ti_0.48)(PSN-PZT,x=0.018,0.020,0.022, 0.025,0.030)压电陶瓷,研究了PSN对PZT压电陶瓷物相、显微形貌、居里温度、介电性能、铁电性能及压电性能的影响,对比测试了PSN-PZT及传统高灵敏度压电陶瓷在5～30 MPa的灵敏度。结果表明,PSN的引入能明显改善PZT压电陶瓷灵敏度,提升其静水压优值(HFOM)。当x=0.020时,PSN-PZT陶瓷拥有最佳的电学性能,此时平面机电耦合系数k_p=0.641、纵向压电应变常数d₃₃=325 pC/N、横向压电电压常数g₃₁=16.642 mV·m·N^-1、等静压压电电压常数g_h (5 MPa)=9.91 mV·m^-1·Pa^-1、HFOM (5 MPa)=679×10^-15 Pa^-1。

关键词: 压电陶瓷, 显微形貌, 铁电性能, 压电性能, 灵敏度, 静水压优值

Abstract: It is of great practical significance to improve the sensitivity and enhance the stability of lead zirconate titanate (PZT) piezoelectric ceramics under hydrostatic pressure condition. In this work, the xPb(Sb_1/2Nb_1/2)O₃-(1-x)Pb(Zr_0.52Ti_0.48) (PSN-PZT, x=0.018, 0.020, 0.022, 0.025, 0.030) piezoelectric ceramics were prepared with conventional solid-state method. The influence of PSN on the phase, microscopic morphology, curie temperature, dielectric property, ferroelectric property, and piezoelectric properties of ceramics has investigated. The sensitivity of PSN-PZT and traditional high sensitivity piezoelectric ceramics was measured comparatively within the hydrostatic pressure of 5～30 MPa. The results show that the incorporation of PSN can improve the sensitivity and enhance the hydrostatic figure of merit (HFOM) of PZT piezoelectric ceramics significantly. When x=0.020, the PSN-PZT ceramics have the best electric properties, planar electromechanical coupling factor k_p=0.641, longitudinal piezoelectric strain constant d₃₃=325 pC/N, transverse piezoelectric voltage constant g₃₁=16.642 mV·m·N^-1, isostatic piezoelectric voltage constant g_h (5 MPa)=9.91 mV·m^-1·Pa^-1, HFOM (5 MPa)=679×10^-15 Pa^-1.

Key words: piezoelectric ceramics, microscopic morphology, ferroelectric property, piezoelectric property, sensitivity, HFOM

中图分类号:

TM282

盖学周, 吴凡, 汪跃群. 基于Pb(Sb_1/2Nb_1/2)O₃-Pb(ZrTi)O₃的高灵敏度压电陶瓷研究[J]. 硅酸盐通报, 2024, 43(10): 3807-3713.

GAI Xuezhou, WU Fan, WANG Yuequn. Research of High Sensitivity Piezoelectric Ceramics Based on Pb(Sb_1/2Nb_1/2)O₃-Pb(ZrTi)O₃[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2024, 43(10): 3807-3713.

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基于Pb(Sb_1/2Nb_1/2)O₃-Pb(ZrTi)O₃的高灵敏度压电陶瓷研究

Research of High Sensitivity Piezoelectric Ceramics Based on Pb(Sb_1/2Nb_1/2)O₃-Pb(ZrTi)O₃

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