Modeling of Electric Field Distribution and its Corelation with Breakdown Strength in Diphasic Dielectrics

Abstract

An electric field distribution in a 3D diphasic dielectric structure with inclusions randomly dispersed in a host phase is simulated using a boundary element method (BEM) to mimic real-world system. A dielectric composite is assumed to undergo the intrinsic breakdown, and a percolation model is used to define the initiation of breakdown process. The simulations comprehensively identify the impact of the inclusion proximity, orientation, dielectric contrast, inclusion volume fraction, and role of interfaces on breakdown strength of diphasic composites. The quantitative correlation between all these factors and the breakdown strength of composites has been established.

Meeting Name

17th IEEE International Symposium on Applications of Ferroelectrics (2008: Feb. 23-28, Santa Fe, NM)

Department(s)

Electrical and Computer Engineering

Second Department

Materials Science and Engineering

Keywords and Phrases

Carbon fiber reinforced plastics; Dielectric materials; Electric breakdown; Electric field effects; Electric fields; Impact strength; Inclusions; Numerical analysis; Phase interfaces; Three dimensional; Breakdown strengths; Dielectric composites; Field distributions; Percolation models; Quantitative correlations; Boundary element method

International Standard Book Number (ISBN)

978-1-4244-2744-4

International Standard Serial Number (ISSN)

1099-4734; 2375-0448

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2008 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.

Publication Date

01 Feb 2008

Link to Full Text

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