Journal article


Mechanical constitutive behavior and exceptional blocking force of lead-free BZT-xBCT piezoceramics


Publication Details
Author(s): Brandt DR, Acosta M, Koruza J, Webber K
Publisher: American Institute of Physics (AIP)
Publication year: 2014
Volume: 115
ISSN: 0021-8979
Language: English

Abstract

The free strain during unipolar electrical activation and the blocking stress are important figures of merit for actuator applications. The lead-free (1 - x)Ba(Zr0.2Ti0.8)O-3-x(Ba0.7Ca0.3)TiO3 (BZT-xBCT) system has been shown to display exceptional unipolar strain at room temperature, making it very attractive as an electroactive material for large displacement, low frequency actuation systems. In this work, the temperature-and composition-dependent blocking stress is measured with the proportional loading method. It was found that BZT-xBCT outperformed Pb(Zr1-xTix)O-3 and Bi1/2Na1/2TiO3-based ceramics for electric fields up to 2 kV/mm. (C) 2014 AIP Publishing LLC.



How to cite
APA: Brandt, D.R., Acosta, M., Koruza, J., & Webber, K. (2014). Mechanical constitutive behavior and exceptional blocking force of lead-free BZT-xBCT piezoceramics. Journal of Applied Physics, 115. https://dx.doi.org/10.1063/1.4879395

MLA: Brandt, David RJ, et al. "Mechanical constitutive behavior and exceptional blocking force of lead-free BZT-xBCT piezoceramics." Journal of Applied Physics 115 (2014).

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