Study of reduced composite PZT for large-displacement actuators

摘要：

A new kind of composite piezoelectric ceramics for large-displacement actuators, which are composed of reduced and unreduced layers, was prepared from normal PZT by chemical reduction. The distribution of stress inside the composite PZT was researched and the chemical reduction conditions were explored. The actuating properties of reduced PZT were also studied. It is found that optimal ratio of reduced layer thickness for the composite structure is 0.3; Reduced composite PZT has lower resonance frequency and 3 times larger displacement than that of the traditional PZT; Re-oxide phases are found in reduced layer of composite PZT showing the reduction procedure needs to be improved.

关键词： composite PZT stress chemical reduction actuator

作者: Xing Shen Yonggang Liu Jinhao Qiu

作者单位: The key lab for smart materials and structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

会议类型: 国际会议

会议名称: The Second International Conference on Smart Materials & Structures in Aerospace Engineering(第二届航空宇航智能材料与结构国际研讨会)

会议地点: 南京

会议语种:英文

页码: 138-144

在线出版日期: 2006-09-24（万方平台首次上网日期，不代表论文的发表时间）