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Title: Polarization response of proton irradiated 0.9Pb(Mg[sub ⅓]Nb[sub ⅔])0₃-0.1PbTiO₃/polyvinylidene fluoride-trifluoroethylene 0-3 composites
Authors: Lam, KH
Chan, HLW 
Keywords: Lead compounds
Relaxor ferroelectrics
Ferroelectric ceramics
Polymer blends
Filled polymers
Dielectric polarisation
Dielectric hysteresis
Proton effects
Ferroelectric transitions
Issue Date: 15-Nov-2004
Publisher: American Institute of Physics
Source: Journal of applied physics, 15 Nov. 2004, v. 96, no. 10, p. 5898-5902 How to cite?
Journal: Journal of applied physics 
Abstract: Polyvinylidene fluoride-trifluoroethylene [P(VDF-TrFE) 70/30 mol %] copolymer can be transformed from a normal ferroelectric to a relaxor ferroelectric material after proton irradiation. The phase transition peak broadens and shifts towards lower temperature as the measurement frequency decreases. The occurrence of a slim polarization-electric field loop is another evidence of the effect of proton irradiation. In the present study, 0-3 composites are fabricated by incorporating 0.9Pb(Mg[sub ⅓]Nb[sub ⅔])O₃-0.1PbTiO₃ ceramic powder into a P(VDF-TrFE) 70/30 mol % copolymer matrix. 0.9PMN-0.1PT ceramic is a relaxor ferroelectric with high dielectric permittivity. It was found that the relative permittivity of an unirradiated PMN-PT/P(VDF-TrFE) 0-3 composite increases with increasing ceramic volume fraction. With a dosage of 1000 kGy (where 1 Gy = 100 rad), the composite exhibits a broad peak in the relative permittivity. In the unirradiated composites, the remnant polarization increases gradually with PMN-PT volume fraction. After irradiation, the remnant polarization of the composites with different PMN-PT volume fractions is similar to that of the irradiated copolymer. Energy storage capabilities of the samples were evaluated which showed that proton irradiated composites have a potential for energy storage applications.
ISSN: 0021-8979
EISSN: 1089-7550
Rights: © 2004 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 K.H. Lam & H.L.W. Chan, J. Appl. Phys. 96, 5898 (2004) and may be found at
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