New PZT formulation for actuators

The improvement of piezoactuators relies on the development of new PZT formulations presenting low dielectric/mechanical losses, high dielectric and piezoelectric coefficients and low conductivity. Hard materials presenting oxygen vacancies are good candidates, but their stability under external sol...

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Bibliographic Details
Main Authors: Eyraud, L., Audigier, D., Lebrun, L., Guiffard, B., Guyomar, D.
Format: Conference Proceeding
Language:English
Subjects:
Actuators
Bars
Dielectric loss measurement
Dielectric losses
Equivalent circuits
Hysteresis
Lead
Stability
Stress
Temperature
Online Access:Request full text
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Summary:The improvement of piezoactuators relies on the development of new PZT formulations presenting low dielectric/mechanical losses, high dielectric and piezoelectric coefficients and low conductivity. Hard materials presenting oxygen vacancies are good candidates, but their stability under external solicitations can be improved. In this paper, new formulations based on the introduction of fluorine ions at the anionic sites and at the same time, a proper cation substitution at site A and B are proposed. Experimental curves are given to show their stability.
ISSN:1099-4734
2375-0448
DOI:10.1109/ISAF.1998.786688