基于 Pb(Sb1/2Nb1/2)O3-Pb(ZrTi)O3的高灵敏度压电陶瓷研究
Research of High Sensitivity Piezoelectric Ceramics Based on Pb(Sb1/2Nb1/2)O3-Pb(ZrTi)O3
盖学周 1吴凡 1汪跃群1
作者信息
- 1. 杭州应用声学研究所,杭州 310023
- 折叠
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(Sb1/2Nb1/2)O3-(1-x)Pb(Zr0.52Ti0.48)(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kp=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gh(5 MPa)=9.91 mV·m-1·Pa-1、HFOM(5 MPa)=679 ×10-15 Pa-1.
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(Sb1/2Nb1/2)O3-(1-x)Pb(Zr0.52Ti0.48)(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 kp=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 gh(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Key words
piezoelectric ceramics/microscopic morphology/ferroelectric property/piezoelectric property/sensitivity/HFOM引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据