弛豫铁电体微畴生长动力学研究  

Dynamics on Microdomain Growth of Relaxor Ferroelectrics

作　　者：张栋杰[1] 姚熹[2] 

机构地区：[1]南京师范大学材料科学重点实验室,江苏南京210097 [2]西安交通大学电子材料与元器件研究所,陕西西安710049

出　　处：《压电与声光》2005年第5期583-586,共4页Piezoelectrics & Acoustooptics

基　　金：江苏高校自然科学研究计划资助项目(NO.03KJB430068)

摘　　要：制备了铅基弛豫铁电体PZN和PM NT基陶瓷。利用修正的局域冻结玻璃模型研究了弛豫铁电体微畴-宏畴转变和微畴生长动力学,结果表明微畴-宏畴转变稳定性由活化能和状态数来判断;而微畴生长动力学的稳定性可用稳定性判据值大小确定。The Pb-based complex perovskite relaxor ferroelectrics （RFE） of PMNT and PZN ceramics were prepared by conventional methods. The dynamics on microdomain growth of relaxor ferroelectrics was investigated deeply by using an amending local freezing glass-model. The result is that the stability of microdomainmacrodomain transition in RFE is judged by both activating energy and state parameter. The stability of microdomain growth was judged by value of stability.

关 键 词：铁电体 陶瓷 生长 动力学 

分 类 号：O482.54[一般工业技术—材料科学与工程]