Dielectric dispersion and ac conductivity in - Iron particles loaded: Polymer composites

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dc.contributor.author Psarras, GC en
dc.contributor.author Manolakaki, E en
dc.contributor.author Tsangaris, GM en
dc.date.accessioned 2014-03-01T01:18:52Z
dc.date.available 2014-03-01T01:18:52Z
dc.date.issued 2003 en
dc.identifier.issn 1359-835X en
dc.identifier.uri http://hdl.handle.net/123456789/15237
dc.subject A. Particle-reinforcement en
dc.subject A. Polymer-matrix composites (PMCs) en
dc.subject B. Electrical properties en
dc.subject B. Interface/interphase en
dc.subject Electric modulus en
dc.subject.classification Engineering, Manufacturing en
dc.subject.classification Materials Science, Composites en
dc.subject.other Electric conductivity en
dc.subject.other Epoxy resins en
dc.subject.other Interfaces (materials) en
dc.subject.other Iron en
dc.subject.other Permittivity en
dc.subject.other Reinforcement en
dc.subject.other Thermal effects en
dc.subject.other Particle-reinforcement en
dc.subject.other Composite materials en
dc.title Dielectric dispersion and ac conductivity in - Iron particles loaded: Polymer composites en
heal.type journalArticle en
heal.identifier.primary 10.1016/j.compositesa.2003.08.002 en
heal.identifier.secondary http://dx.doi.org/10.1016/j.compositesa.2003.08.002 en
heal.language English en
heal.publicationDate 2003 en
heal.abstract Polymer composites of an epoxy resin matrix with randomly dispersed Iron micro-particles in various amounts were prepared and their dielectric spectra were measured in the frequency range 5 Hz-13 MHz and temperature interval from ambient to 140 degreesC. Obtained data were analysed by means of electric modulus formalism. Interfacial or Maxwell-Wagner-Sillars relaxation process was revealed in the frequency range and temperature interval of the measurements, which was found to follow the Cole-Davidson approach for the distribution of relaxation times. The examined systems exhibit strong dispersion with frequency. At low frequencies ac conductivity tends to be constant, while at higher becomes frequency dependent varying as a power of frequency. Conductivity increases with temperature in the low frequency regime, remaining almost unaffected at higher frequencies. (C) 2003 Elsevier Ltd. All rights reserved. en
heal.publisher ELSEVIER SCI LTD en
heal.journalName Composites Part A: Applied Science and Manufacturing en
dc.identifier.doi 10.1016/j.compositesa.2003.08.002 en
dc.identifier.isi ISI:000186557400007 en
dc.identifier.volume 34 en
dc.identifier.issue 12 en
dc.identifier.spage 1187 en
dc.identifier.epage 1198 en

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