Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/4041
Title: Electrical conductivity enhanced dielectric and piezoelectric properties of ferroelectric 0-3 composites
Authors: Wong, CK
Shin, FG
Keywords: Lead compounds
Filled polymers
Ferroelectric materials
Electrical conductivity
Permittivity
Transients
Piezoelectric materials
Issue Date: 15-Mar-2005
Publisher: American Institute of Physics
Source: Journal of applied physics, 15 Mar. 2005, v. 97, no. 6, 064111, p. 1-9 How to cite?
Journal: Journal of applied physics 
Abstract: We have investigated the effects of electrical conductivity of the constituents on the dielectric and piezoelectric properties of ferroelectric 0-3 composites. The time-dependent internal electric fields are first derived, which can be induced by an applied ac field in dielectric measurement or stress in piezoelectric measurement. Our previously developed model [C. K. Wong, Y. M. Poon, and F. G. Shin, J. Appl. Phys. 90, 4690 (2001)] has been extended to include the additional contribution from the electrical conductivities and the frequency of measurement, which can be significant for ceramic/polymer composites possessing high conductivity in the matrix phase. The model provides an explanation to the surprisingly high piezoelectric d₃₃values reported by, e.g., Chen et al. [Sens. Actuators, A 65, 194 (1998)]. Explicit expressions for the transient and steady-state responses are given and the effective permittivity, d₃₃, d₃₁, and d[sub h] coefficients have been derived.
URI: http://hdl.handle.net/10397/4041
ISSN: 0021-8979 (print)
1089-7550 (online)
DOI: 10.1063/1.1862317
Rights: © 2005 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in C. K. Wong & F. G. Shin, J. Appl. Phys. 97, 064111 (2005) and may be found at http://link.aip.org/link/?jap/97/064111.
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