超声电机用压电材料的研究进展  

Research Progresses in Piezoelectric Materials for Ultrasonic Motor Applications

作　　者：段志杰[1] 李千[1] 吴华德[1] 杨颖[1] 

机构地区：[1]南京航空航天大学精密驱动研究所,南京210016

出　　处：《材料导报》2008年第6期24-27,共4页Materials Reports

基　　金：江苏省高技术研究重大项目(DG2006005)

摘　　要：压电材料是超声电机的核心,压电材料性能的优劣在很大程度上影响和制约着超声电机的发展。从几个方面对超声电机用压电材料的应用及研究进展进行了评述和探讨。在总结超声电机对压电陶瓷性能的要求以及目前压电陶瓷的使用现状之后,从配方、工艺、质量3方面提出了可能的改进方法,针对超声电机在特殊环境下的服役条件,介绍了弛豫铁电体单晶和高居里温度压电陶瓷等新型压电材料在超声电机上应用的新进展,提出了未来超声电机对压电材料的要求。The performance of piezoelectric materials affects and restricts the development of ultrasonic motors to a great degree. In this paper the application and research progress of piezoelectric materials for ultrasonic motors are discussed from several aspects. The demand of the performance of piezoelectric materials for ultrasonic motors and the present status of the applications of these materials are reviewed. Some potential improving methods are proposed from the aspects of composition, process and quality. The progresses in research on piezoelectric materials for ultrasonic motors in extreme environment, especially relaxor ferroelectric single crystal and high Curie temperature piezoelectric material are discussed. Suggestions for future research on piezoelectric materials applied to ultrasonic motors are given.

关 键 词：超声电机 压电材料 性能 进展 改进 

分 类 号：TM35[电气工程—电机] TM22[一般工业技术—材料科学与工程]