Enhanced piezoelectric properties and thermal stability of LiNbO_(3)-modified PNN-PZT ceramics

作     者：Wei Peng Jianglei Chang Jianwei Zhao Dawei Wang Zhen Liu Genshui Wang Shuxiang Dong 

作者机构：Institute for Advanced StudyShenzhen UniversityShenzhen518060China Shenzhen Institute of Advanced Electronic MaterialsShenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen518055China School of Instrumentation Science and EngineeringHarbin Institute of TechnologyHarbin150080China Key Laboratory of Inorganic Functional Materials and DevicesShanghai Institute of CeramicsChinese Academy of SciencesShanghai201899China 

出 版 物：《Journal of Materiomics》 (无机材料学学报（英文）)

年 卷 期：2024年第10卷第5期

页      面：995-1003页

核心收录：

学科分类：081702[工学-化学工艺] 08[工学] 0817[工学-化学工程与技术] 

基　　金：This work was supported by Key Research and Development Program of Ministry of Science and Technology of China(No.2022YFB3204000) 

主　　题：PNN-PZT LiNbO_(3) Piezoelectric property Defect dipole Thermal stability 

摘      要：Piezoelectric PZT ceramics with high piezoelectric properties and good thermal stability are urgently desired concerning the practical *** compositions of LiNbO_(3) modified Pb(Ni_(1/3)Nb_(2/3))O_(3)single bondPbZrO_(3)single bondPbTiO3 ceramics have been prepared in this *** effects of the introduction of the LiNbO3 on the system were comprehensively investigated in terms of the phase structure,microstructure,electric properties,and thermal stability behavior of the *** compositions are located in the morphotropic phase boundary(MPB)region,and the ratio of the rhombohedral(R)phase increases obviously with the increase of LiNbO_(3) *** increasing the LiNbO3 content,the piezoelectric properties were significantly *** sample added with 2%(in mole)LiNbO_(3) shows excellent electric properties,including T_(m)=185℃,εr=5,643,k_(p)=0.626,Q_(m)=51,d_(33)=902 pC/*** importantly,no thermal depolarization behavior was observed in the temperature range of 25–100℃.For PNN-PZT-x%LN ceramics,which is mainly attributed to the pinning effect resulted by the(Li_(Pb)-Nb_(Zr/Ti)) defect dipoles.