High electric-field-induced strain of Pb(Mg
1/3
Nb
2/3
)O
3
-PbTiO
3
crystals and their application in multilayer actuators |
| |
| Authors: | Z Feng H Luo Z Yin C Guang N Ling |
| |
| Institution: | (1) The State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 215 Chengbei Rd., Jiading, Shanghai, 201800, China;(2) Institute of Optics & Electronics, Chinese Academy of Sciences, Chengdu, 610209, China |
| |
| Abstract: | Electric-field-induced strain behavior of differently oriented and componential (1-x)Pb(Mg1/3Nb2/3)O3xPbTiO3 (PMNT) crystals was investigated. An optimum composition range (29%≤x≤31%) of 〈001〉-oriented PMNT crystals was ascertained for multilayer actuator applications, which exhibited high-strain and low-hysteresis behavior. The rhombohedral (monoclinic)–tetragonal phase-transition behavior in PMNT single crystals is dependent on their thermal and electric history, which markedly impacts on the strain performance of the crystals. In contrast to PZT-SF (doped PZT ceramics) multilayer actuators, the strain values for 20-layer PMNT actuators with individual element sizes of 6×6×0.3 mm3 are larger by more than five times at 20 kV/cm (0.373% compared to 0.072%), and 23-μm displacements can been achieved. Against 40-N load, the displacements are decreased to 20.2 μm. PACS 77.80.Bh; 77.80.-e; 77.65.Dq; 77.65.Ly; 77.22.-d |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
