Sb^(3+)和Ba^(2+)共掺杂锆钛酸铅压电陶瓷的制备与表征  

Preparation and characterization of Ba^(2+)and Sb^(3+)co-doped PZT piezoelectric ceramics

作　　者：贝颂 何宜珂 马寅博 刘贵山 BEI Song;HE Yike;MA Yinbo;LIU Guishan(School of Textile and Material Engineering,Dalian Polytechnic University,Dalian 116034)

机构地区：[1]大连工业大学纺织与材料工程学院,辽宁大连116034

出　　处：《大连工业大学学报》2024年第4期291-295,共5页Journal of Dalian Polytechnic University

基　　金：辽宁省教育厅服务地方项目(J2020010);辽宁省高等学校产业技术研究院项目(2018LY017)。

摘　　要：以三氧化二锑、碳酸钡为掺杂原材料,采用固相烧结法制备了Sb^(3+)和Ba^(2+)共掺杂锆钛酸铅陶瓷。利用XRD、SEM、自动元件分析仪、准静态D33测量仪、精密阻抗分析仪等对介质的物相、微观形貌、机电性能进行了研究。实验结果表明,Sb^(3+)和Ba^(2+)共掺杂锆钛酸铅陶瓷具有更好的致密性,当掺杂质量分数为1%的Sb_(2)O_(3)和2%的BaO时,机电性能显著提升,相对介电常数为1854,压电系数为439.6 pC/N,机电耦合系数为66%,居里温度从398℃降至380℃。高的压电系数有利于提升锆钛酸铅所制备电子元器件的接收和发射的灵敏度。Sb^(3+)and Ba^(2+)co-doped lead zirconate titanate(PZT)ceramics were prepared by solid-phase sintering method using antimonous oxide and barium carbonate as doped raw materials.The phase,micro-morphology and electromechanical properties of the medium were studied by XRD,SEM,automatic component analyzer,quasi-static D 33 measuring instrument and precision impedance analyzer.The results showed that Sb^(3+)and Ba^(2+)co-doped lead zirconate titanate ceramics had better compactness.When the mass fraction of doped Sb 2O 3 was 1%and doped BaO was 2%,the electromechanical property was significantly improved.The relative dielectric constant was 1854,the piezoelectric coefficient was 439.6 pC/N,the electromechanical coupling coefficient was 66%,and the Curie temperature was reduced from 398 to 380℃.The high piezoelectric constant is conducive to improving the receiving and transmitting sensitivity of the electronic components prepared by PZT.

关 键 词：锆钛酸铅 共掺杂 压电陶瓷 机电耦合系数 

分 类 号：TQ174[化学工程—陶瓷工业]