The Dielectric, Mechanical and Piezoelectric Properties of 3-3 Piezoelectric Composites

Author： Ramesh R.   Kara H.   Bowen C. R.  

Publisher： Taylor & Francis Ltd

ISSN： 0015-0193

Source： Ferroelectrics, Vol.273, Iss.1, 2002-01, pp. : 383-388

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Abstract

The effective material parameters of the 3-3 piezocomposites are estimated using constitutive equations corresponding to the thickness-mode oscillations of a piezocomposite plate resonator. The dielectric constant (ɛ33T / ɛ0), piezoelectric coefficients (d33, d31, dh, gh and e33), stiffness coefficient (c33E), electrical impedance spectrum, electromechanical thickness-mode coupling coefficient (kt), acoustic impedance (Zaco) of the 3-3 composites are evaluated as a function of piezoceramic/polymer volume fraction. The results are compared with the experimental data.

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