High temperature blocking force measurements of soft lead zirconate titanate
Webber KG, Aulbach E, Roedel J (2010)
Publication Language: English
Publication Status: Published
Publication Type: Journal article
Publication year: 2010
Journal
Publisher: Institute of Physics: Hybrid Open Access
Book Volume: 43
DOI: 10.1088/0022-3727/43/36/365401
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.
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Germany (DE)How to cite
APA:
Webber, K.G., Aulbach, E., & Roedel, J. (2010). High temperature blocking force measurements of soft lead zirconate titanate. Journal of Physics D-Applied Physics, 43. https://doi.org/10.1088/0022-3727/43/36/365401
MLA:
Webber, Kyle Grant, Emil Aulbach, and Juergen Roedel. "High temperature blocking force measurements of soft lead zirconate titanate." Journal of Physics D-Applied Physics 43 (2010).
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