Campus Units

Materials Science and Engineering, Electrical and Computer Engineering, Center for Nondestructive Evaluation

Document Type

Article

Publication Version

Submitted Manuscript

Publication Date

2014

Journal or Book Title

IEEE Transactions on Dielectrics and Electrical Insulation

Volume

21

Issue

2

First Page

488

Last Page

496

DOI

10.1109/TDEI.2013.004181

Abstract

A three-phase theoretical model is proposed that is suitable for describing the effective permittivity of polymer-matrix composites containing spherical nanoparticles. The model accounts for the presence of an interphase region, which surrounds each nanosphere, whose permittivity is allowed to be different from that of the matrix polymer. The nanoparticles themselves are approximated as hard (non-overlapping) spheres, whereas the interphase regions of neighboring nanoparticles are permitted to overlap. The volume fraction of the interphase region is computed by assuming that the nanoparticles are arranged on the nodes of a simple-cubic lattice. The effective permittivity of the composite is subsequently computed via three-phase Wiener bounds. As an example application of the model, permittivity data measured on a silicon/bisphenol E cyanate ester nanodielectric and a low-density polyethylene/alumina nanodielectric are shown to lie outside the range of the two-phase Wiener bounds yet lie within the range of the three-phase Wiener bounds with appropriate choice of interphase permittivity and thickness.

Comments

This is a manuscript of an article published as Daily, Connor S., Weixing Sun, Michael R. Kessler, Xiaoli Tan, and Nicola Bowler. "Modeling the interphase of a polymer-based nanodielectric." IEEE Transactions on Dielectrics and Electrical Insulation 21, no. 2 (2014): 488-496, doi:10.1109/TDEI.2013.004181. Posted with permission.

Rights

© 2014 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

Copyright Owner

IEEE

Language

en

File Format

application/pdf

Published Version

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