锆钛酸铅镧压电陶瓷纤维的制备与性能.pdf

文档介绍：刘涛等:合成温度对双温区合成硫化镁相组成的影响· 419 ·第38卷第3期锆钛酸铅镧压电陶瓷纤维的制备与性能徐玲芳1,陈文2,周静2,杨昌平1(1. 湖北大学,物理学与电子技术学院暨铁电压电材料与器件湖北省重点实验室,武汉 430062;2. 武汉理工大学材料科学与工程学院,武汉 430070) 摘要:以锆钛酸铅镧[(PbLa)(ZrTi)O,lead lanthanum zirconate titanate,PLZT]压电陶瓷为原料,用塑性聚合物法制备不同截面的PLZT陶瓷纤维。用X射线衍射、扫描电镜、密度测试仪、微力试验机和铁电分析仪分别测试PLZT陶瓷纤维的相结构、显微形貌、密度、力学性能和铁电性能。结果表明:PLZT陶瓷纤维为三方相钙钛矿结构,圆柱形纤维的直径和方柱形纤维的边长分别约250μm和300μm。、×、×10MPa。PLZT陶瓷纤维均具有良好的铁电性能,圆柱形纤维的饱和场强、剩余极化强度(P)和矫顽场(E)分别为10kV/mm、/mm;方柱形的饱和场强、P及E分别为10kV/mm、/mm。关键词:锆钛酸铅镧;铁电性能;塑性聚合物法中图分类号:TB332 文献标志码:A 文章编号:0454–5648(2010)03–0419–06 FABRICATION AND PERFORMANCE OF LEAD LANTHANUM ZIRCONATE TITANATE PIEZOELECTRIC CERAMIC FIBER XU Lingfang1,CHEN Wen2,ZHOU Jing2,YANG Changping1(1. School of Physics and Electronic Technology and Key Laboratory of Ferroelectric and Piezoelectric Materials and Devices of Hubei Province, Hubei University, Wuhan 430062; 2. Institute of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China) Abstract: Lead lanthanum zirconate titanate ((Pb1–xLax)(Zr1–yTiy)O3, PLZT) piezoelectric ceramic was used as raw material, and PLZT fibers with different sections was created using the plastic polymer process. The phase structure, microstructure, density, as well as mechanical and ferroelectric properties were measured with the X-ray diffractio