Abstract
The present paper reports the development of a unique model to provide physical insights to the complex permittivity of composite systems. The model takes into account interactions between the components of the composite system in the form of interphase regions. The resultant model, termed the interphase power-law (IPL) model, relies on the permittivities of the filler component, the matrix component and the interphase region as well as the volume fractions of each. The model is applicable to any uniform composite system of discrete particles dispersed within a matrix. Trends in the composite material's effective permittivity as a function of filler volume fraction, interphase permittivity, filler surface area and filler particle shapes are explored.
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