High temperature blocking force measurements of soft lead zirconate titanate

Journal article


Publication Details

Author(s): Webber K, Aulbach E, Roedel J
Journal: Journal of Physics D-Applied Physics
Publisher: Institute of Physics: Hybrid Open Access
Publication year: 2010
Volume: 43
ISSN: 0022-3727
Language: English


Abstract


Piezoelectric actuators outperform other technological solutions in the area of high-speed, high-force and high-accuracy displacement, but are only able to generate strains of about 0.2%. The load capability is generally quantified in terms of a blocking force, which is the force sustained under electric field at zero displacement. Stress-strain curves in a temperature regime from room temperature up to 150 degrees C on electrically loaded soft lead zirconate titanate (PZT) are generated to determine the blocking stress. The ensuing nonlinear behaviour is discussed in terms of ferroelectric and ferroelastic switching and contrasted to idealized linear constitutive behaviour as often assumed by manufacturers. The blocking stress is shown to increase with temperature due to an additional stiffening effect as a function of electric field. The actual mechanical work done is found to be larger than in the idealized case where linear constitutive behaviour is assumed.



FAU Authors / FAU Editors

Webber, Kyle Prof.
Professur für Werkstoffwissenschaften (Funktionskeramik)


External institutions with authors

Technische Universität Darmstadt


How to cite

APA:
Webber, K., Aulbach, E., & Roedel, J. (2010). High temperature blocking force measurements of soft lead zirconate titanate. Journal of Physics D-Applied Physics, 43. https://dx.doi.org/10.1088/0022-3727/43/36/365401

MLA:
Webber, Kyle, Emil Aulbach, and Juergen Roedel. "High temperature blocking force measurements of soft lead zirconate titanate." Journal of Physics D-Applied Physics 43 (2010).

BibTeX: 

Last updated on 2018-11-08 at 02:44