Large electric field-induced strain in the novel BNKTAN-BNBLTZ lead-free ceramics

作     者：Chao Wang Qiang Li Weiming Zhang Huiqing Fan Chao Wang;Qiang Li;Weiming Zhang;Huiqing Fan

作者机构：State Key Laboratory of Solidification ProcessingSchool of Materials Science and EngineeringNorthwestern Polytechnical UniversityXi'an 710072China 

出 版 物：《Journal of Materials Science & Technology》 (材料科学技术（英文版）)

年 卷 期：2020年第42卷第10期

页      面：15-22页

核心收录：

学科分类：080503[工学-材料加工工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：the National Nature Science Foundation of China(No.51672220) the Fundamental Research Funds for the Central Universities of NPU(No.3102019GHXM002) the SKLSP Project(No.2019-TZ-04) 

主　　题：BNT-based ceramics Ferroelectric properties Strain Fatigue resistance 

摘      要：(1-x)Bi0.5(Na0.82K0.18)0.5Ti0.96(Al0.5Nb0.5)0.04O3-xBi0.46Na0.46Ba0.5La0.02Ti0.97Zr0.03O3 lead-free ceramics(abbreviated as BNKTAN-100x BNBLTZ)was prepared by the conventional solid *** patterns and EDS spectrums revealed that a stable solid solution had been formed between BNBLTZ and *** the introduction of BNBLTZ anti-ferroelectric content,BNKTAN relaxor ferroelectrics exhibited the excellent field-induced-strain for x=0.04 corresponding to electric field-induced strain S^0.505%and normal strain d33*~777 pm/V at 65 kV/*** large strain response was attributed to the emergence of PNRs in the relaxation ***,an excellent fatigue resistance performance was obtained within 105cycles(S=0.505%–0.495%and d33*=777–758 pm/V,65 kV/cm).It suggested that prepared ceramics had the great potential to strain sensor and actuators.