A systematic analysis of the radial resonance frequency spectra of the PZT-based (Zr/Ti=52/48) piezoceramic thin disks  

作　　者：Yu CHEN Shaozhao WANG Huajiang ZHOU Qian XU Qingyuan WANG Jianguo ZHU 

机构地区：[1]School of Mechanical Engineering,Chengdu University,Chengdu 610106,China [2]College of Materials Science and Engineering,Sichuan University,Chengdu 610065,China [3]College of Architecture and Environment,Sichuan University,Chengdu 610065,China

出　　处：《Journal of Advanced Ceramics》2020年第3期380-392,共13页先进陶瓷（英文）

基　　金：This work was supported by the China Postdoctoral Science Foundation Funded Project(2017M623025);Special Funding for Post-Doctoral Research Projects from Sichuan Province(2017,presided over by Yu Chen);National Natural Science Foundation of China(Grant No.11702037);Opening Project of Key Laboratory of Inorganic Functional Materials and Devices,Chinese Academy of Sciences(Grant No.KLIFMD201703).

摘　　要：In this paper,both the ID radial mode and the equivalent circuit of a piezoceramic disk resonator were theoretically analyzed based on IEEE standards.And then,the radial resonance frequency spectra of the PZT-based(Nb/Ce co-doped Pb(Zro.s2Ti0.48)O3,abbreviated as PZT-NC)piezoceramic circular disks were measured by an impedance analyzer.A set of resonance frequency spectra including six electrical parameters:Z,R,X,Y,G,and B,were used for making a value distinction between three possible resonance frequencies,and between three possible antiresonance frequencies.A new-form Nyquist diagram was depicted to describe the position relations of these characteristic frequencies.Such a complete resonance frequency spectrum was used to perform the accurate calculation of some material constants and electromechanical coupling parameters for the PZT-NC piezoceramics.Further,the frequency dependence of the AC conductive behavior of the specimen was characterized by the complex impedance measurement.The values of AC conductivity at resonance/antiresonance were deduced from the equivalent circuit parameters.Moreover,the Van Dyke circuit model was assigned to each element contribution and the simulated curves showed a nice fitting with the experimental results.Finally,an additional impedance analysis associated with resonance frequency calculation revealed a complicated coupled vibration mode existing in the annular disk specimen.

关 键 词：piezoceramic resonator radial mode AC conductivity resonance frequency spectra 

分 类 号：TQ174.1[化学工程—陶瓷工业]