颗粒填充二元复合材料等效介电特性的修正通用有效介质计算公式

doi:10.11896/j.issn.1005-023X.2018.24.009

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Abstract Dielectric property has been regarded as an important factor in the research of electromagnetic effect and in material design for composite materials. To break through the limitations of the traditional general effective medium (GEM) formula, a modified formula, i.e. modified general effective medium (MGEM) was presented in this study for the dielectric property prediction and calculation of particle-filled binary composite materials. We obtained the effective dielectric properties of the random particle-filled binary composite materials under various parameters by the simulation based on Monte Carlo finite element method (MC-FEM), and by the calculation based on the proposed MGEM formula, respectively. Moreover, we also conducted calculations based on some typical theoretical formulas and collected experimental data in some previously published works. It can be concluded that the prediction results of MGEM formula have complete coincidence with the simulated results of MC-FEM, and are essentially in agreement with the experimental results, within the dielectric constant range of 1/50—50 and the filling volume ratio range of 0—1. MGEM is expected to provide an accurate, reliable, and general-purpose theoretical method for predicting and calculating the effective dielectric pro-perties of particle-filled binary composite materials.

Key words： particle-filled binary composite materials effective dielectric properties modified general effective medium Monte Carlo finite element method

Published: 23 January 2019

CLC number:	TB33
	O441.6

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	Articles by authors
	ZHONG Runeng
	ZHENG Qinhong
	XIANG Tai
	YAO Bin

Cite this article:

ZHONG Runeng,ZHENG Qinhong,XIANG Tai, et al. A Modified General Effective Medium Formula for Calculating the Effective Dielectric Properties of Particle-filled Binary Composite Materials[J]. Materials Reports, 2018, 32(24): 4258-4263.

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http://www.mater-rep.com/EN/10.11896/j.issn.1005-023X.2018.24.009 OR http://www.mater-rep.com/EN/Y2018/V32/I24/4258

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