Complex permittivity of composite systems: a comprehensive interphase approach

Author

Todd, Michael G. ; Shi, Frank G.

Author_Institution

Henry Samueli Sch. of Eng., California Univ., Irvine, CA, USA

Volume

12

Issue

3

fYear

2005

fDate

6/1/2005 12:00:00 AM

Firstpage

601

Lastpage

611

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.

Keywords

composite materials; dielectric losses; permittivity; composite dielectric materials; dielectric constant; dielectric loss; discrete particles; filler particle shapes; filler surface area; filler volume fraction; interphase permittivity; interphase power-law model; matrix component; Bonding; Composite materials; Dielectric constant; Dielectric losses; Equations; Interconnected systems; Permittivity; Polymers; Power system modeling; Shape;

fLanguage

English

Journal_Title

Dielectrics and Electrical Insulation, IEEE Transactions on

Publisher

ieee

ISSN

1070-9878

Type

jour

DOI

10.1109/TDEI.2005.1453466

Filename

1453466