Modeling Permittivity and Tangent Loss in Dielectric Materials Using Finite Element Method and Monte Carlo Simulation

Abraham, Rohan J. S.; Guo, Ruyan; Bhalla, A. S.

doi:10.1080/001501990910258

Cited by 23 publications

(10 citation statements)

References 10 publications

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“…The value of the constant ␣ determines the mixing rule, if ␣ = −1 serial mixing, ␣ = 1 parallel mixing, and ␣ = 0 gives logarithmic mixing rule. 26 In Eq. ͑5͒, i Ј, m Ј , Ј, i Љ, m Љ , and Љ are the real and imaginary parts of the permittivity of the filler, matrix, and the composite, respectively.…”

Section: ͑4͒mentioning

confidence: 96%

See 1 more Smart Citation

Dielectric response of high permittivity polymer ceramic composite with low loss tangent

Subodh¹,

Deepu²,

Mohanan³

et al. 2009

Applied Physics Letters

122

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The present communication investigates the dielectric response of the Sr9Ce2Ti12O36 ceramics loaded high density polyethylene and epoxy resin. Sr9Ce2Ti12O36 ceramic filled polyethylene and epoxy composites were prepared using hot blending and mechanical mixing, respectively. 40 vol % ceramic loaded polyethylene has relative permittivity of 12.1 and loss tangent of 0.004 at 8 GHz, whereas the corresponding composite using epoxy as matrix has permittivity and loss tangent of 14.1 and 0.022, respectively. The effective medium theory fits relatively well for the observed permittivity of these composites.

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Section: ͑4͒mentioning

confidence: 96%

“…The number of theoretical models available for predicting loss tangent is relatively less, as it is more complicated. 25 The following relations are used to model dielectric loss tangent of the composites: general mixing model, 26,27 …”

mentioning

confidence: 99%

Dielectric response of high permittivity polymer ceramic composite with low loss tangent

Subodh¹,

Deepu²,

Mohanan³

et al. 2009

Applied Physics Letters

122

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“…The modeling permittivity of the leftmost plot in Figure 3(a) is exactly the parallel connection, and it has the highest permittivity. The rightmost plot in Figure 3(a) can be considered as the circular inclusion in the former 2-D model [9], and it has relatively low permittivity among this set of model. However even with the right most figure, electric field can still find its path to minimized the influence from MgO.…”

Section: Resultsmentioning

confidence: 99%

“…Computer simulation using finite element method has taken advantage of the rapid growing computer technology. Previously, a 2-D Model of dielectric properties of two materials mixture has been reported using finite element method coupling Monte-Carlo simulation [9]. With further modification, the program is applied in 3-D. Simulation of mixtures of ferroelectric Pb 0.2 Sr 0.8 TiO 3 (PST) with a non ferroelectric MgO is performed, and compared to the experimental results reported by Somiya et al [10].…”

Section: Introductionmentioning

confidence: 99%

UNDERSTANDING OF DIELECTRIC PROPERTIES OF Pb_0.2Sr_0.8TiO₃-MgO COMPOSITE FROM NUMERICAL APPROACH

Wang

Somiya

Guo

et al. 2008

Integrated Ferroelectrics

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Sr 0.8 Pb 0.2 )TiO 3 -MgO composite system has been studied by Somiya et al. At room temperature, attractive relative permittivities (over 100) were obtained with an addition of MgO in (Sr 0.8 Pb 0.2 )TiO 3 . At the same time, low relative dielectric losses, tan(δ), in the range of 10 −4 to 10 −3 were observed in the frequency range from kHz to 4 GHz, respectively. In this study, finite element method with Monte Carlo simulation is conducted for the composition x (Sr 0.8 Pb 0.2 )TiO 3 : (1−x) MgO from x = 0 to 1 in the paraelectric phase (from −50 • C to 200 • C), and the results are computed and compared with the experimental data. The temperature dependence of the relative permittivity of composites was well predicted up to 35.5% volume fraction of (Sr 0.8 Pb 0.2 )TiO 3 . The simulation results show little discrepancy as MgO volume fraction increases. Several possible factors resulting in the differences between experimental results and simulations are discussed.

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“…The number of theoretical models available for predicting loss tangent is relatively less, as they are more complicated [43]. The following relations are used to model dielectric loss tangent of the composites:general mixing model [20,44] …”

Section: Dielectric Propertiesmentioning

confidence: 99%

Dielectric, thermal and mechanical properties of Sr2ZnSi2O7 based polymer/ceramic composites

Joseph

Uma

Philip

et al. 2011

J Mater Sci: Mater Electron

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Polymer/Sr 2 ZnSi 2 O 7 (SZS) ceramic composites suitable for substrate applications have been developed using the polymers polystyrene (PS), high density polyethylene (HDPE) and Di-Glycidyl Ether of Bisphenol A (DGEBA). The dielectric, thermal and mechanical properties of the composites are investigated as a function of various concentrations of the ceramic filler. The obtained values of relative permittivity, dielectric loss tangent, thermal conductivity and coefficient of thermal expansion of the composites are compared with the corresponding theoretical predictions. The relative permittivity of the polymer/ceramic composites increases with filler loading.The dielectric loss tangent also shows the same trend except for DGEBA/SZS composites. The major advantages of the ceramic loading are improvement in thermal conductivity and a decrease in the coefficient of thermal expansion. The tensile strength of the composites decreases with increase in filler content, whereas an improvement is observed in microhardness. The variation of relative permittivity (at 1 MHz) of the composites is also studied as a function of temperature.

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Modeling Permittivity and Tangent Loss in Dielectric Materials Using Finite Element Method and Monte Carlo Simulation

Cited by 23 publications

References 10 publications

Dielectric response of high permittivity polymer ceramic composite with low loss tangent

Dielectric response of high permittivity polymer ceramic composite with low loss tangent

UNDERSTANDING OF DIELECTRIC PROPERTIES OF Pb_0.2Sr_0.8TiO₃-MgO COMPOSITE FROM NUMERICAL APPROACH

Dielectric, thermal and mechanical properties of Sr2ZnSi2O7 based polymer/ceramic composites

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Modeling Permittivity and Tangent Loss in Dielectric Materials Using Finite Element Method and Monte Carlo Simulation

Cited by 23 publications

References 10 publications

Dielectric response of high permittivity polymer ceramic composite with low loss tangent

Dielectric response of high permittivity polymer ceramic composite with low loss tangent

UNDERSTANDING OF DIELECTRIC PROPERTIES OF Pb0.2Sr0.8TiO3-MgO COMPOSITE FROM NUMERICAL APPROACH

Dielectric, thermal and mechanical properties of Sr2ZnSi2O7 based polymer/ceramic composites

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Resources

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UNDERSTANDING OF DIELECTRIC PROPERTIES OF Pb_0.2Sr_0.8TiO₃-MgO COMPOSITE FROM NUMERICAL APPROACH