摘要
设计制作了50层总长为9mm的PMNT单晶叠层驱动器。测试结果表明，PMNT单晶驱动器具有比PZT-5A陶瓷驱动器高2倍的优异应变性能，能满足各种微米-纳米和控制技术的应用需要。
50 layer prototype actuators with individual element size of 5mm ×5mm ×0. 15mm were fabricated under identical processing conditions using two different materials： （1） single crystal 0.70 PMN-0.30PT and （2） commercial PZT-5A ceramics. In contrast to PZT-5A multilayer actuators, the strain values for PMNT crystals actuators are twice between -25 and 200V （0. 240% compared to 0. 121%）, and 18.2/μm displacements can been achieved. In addition, the rhombohedral to tetragonal phase transition behavior in PMNT single crystals was dependent which markedly impacted on the strain performance of the crystals.
出处
《实验力学》
CSCD
北大核心
2005年第B12期101-103,共3页
Journal of Experimental Mechanics
关键词
PMNT铁电单晶
场致应变
压电驱动器
PMNT crystal
electric-field-induced strain
multilayer on thermal and electric history, actuators
