2007
DOI: 10.1051/epjap:2007063
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Modelling and dielectric behavior of ternary composites of epoxy (BaTiO3/CaTiO3)

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Cited by 19 publications
(13 citation statements)
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“…The resonance frequency of the composite shifted to the high frequency range with increasing SrTiO 3 volume fraction. The resonance behavior of the composites shows resonant frequencies that are proved in good agreement with the theoretical values calculated by equation (24) proposed in this article. In particular, the modeling of the frequency dispersion behavior of the complex permittivity of ternary composites allows us to predict the phenomenon when the effective permittivity, the resonance frequency, and the volume fraction of SrTiO 3 and carbon black are known.…”
Section: Discussionsupporting
confidence: 88%
See 1 more Smart Citation
“…The resonance frequency of the composite shifted to the high frequency range with increasing SrTiO 3 volume fraction. The resonance behavior of the composites shows resonant frequencies that are proved in good agreement with the theoretical values calculated by equation (24) proposed in this article. In particular, the modeling of the frequency dispersion behavior of the complex permittivity of ternary composites allows us to predict the phenomenon when the effective permittivity, the resonance frequency, and the volume fraction of SrTiO 3 and carbon black are known.…”
Section: Discussionsupporting
confidence: 88%
“…To extract the complex dielectric permittivity ε * of a sample under test from measurement signals, we adopt the calculation method described in Bourouba et al 23 and Bouzit et al 24 On the other hand, we can develop an expression that gives relation between the input admittance Y in ω , the characteristic admittance Y 0 , and the complex permittivity ε * as follows:…”
Section: Methodsmentioning
confidence: 99%
“…The nonlinear regression method (generalized reduced gradient (GRG) Algorithm) fixes this factor to a second order polynomial by virtue of its nonlinear evolution with respect to the volume fractions of each constituent, ensuring a minimum difference between the experimental data and the theoretical values resulting from the effective dielectric permittivity and effective magnetic permeability of the material under investigation as well as an acceptable level of optimization. We attempted to advance the study of multiphase composites in this work by characterizing and investigating the dielectric and magnetic behaviours of these composite materials in one research, since the previous works 19,[21][22][23][24][25][26][27][28][29] only looked at the dielectric behavior. Additionally, the effect of additives (ST/BT, FE/FR) was added to similar multiphase mixtures in order to calculate their contribution and to compare the improvement in dielectric and electrical properties achieved by these additives with different other mixtures.…”
mentioning
confidence: 99%
“…For instance, in our case of study, this experimental process has been applied for the determination of the dielectric constant ( ) and the static conductivity ( ) in the low frequency range. The basic principle uses the multiple reflections method [10]. The temporal signal being measured displays the TDR response of the dielectric material under test and from which a signal mathematical processing allows us to calculate the coefficient of reflection D( ) by using the following expression:…”
Section: Method's Principlementioning
confidence: 99%