Voltage Breakdown in Random Composites

Voltage breakdown is a strongly localized phenomenon in random‐microstructure composites because the different dielectric constants of metal and polymer matrix turn a uniform external field across the structure into spatially non‐uniform local fields. The authors show that rather small computer mode...

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Bibliographic Details
Published in:	Advanced engineering materials Vol. 5; no. 10; pp. 713 - 715
Main Authors:	Gusev, A.A., Guseva, O.A.
Format:	Journal Article
Language:	English
Published:	Weinheim WILEY-VCH Verlag 01-10-2003 WILEY‐VCH Verlag Wiley-VCH
Subjects:	Composite materials Composites Computation Condensed matter: electronic structure, electrical, magnetic, and optical properties Conductivity of specific materials Electronic transport in condensed matter Exact sciences and technology Modeling Physics Representative volume element Electrical conductivity Electric breakdown Composite materials Random phase Theoretical study Boundary conditions Percolation Computerized simulation Microstructure Permittivity
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Summary:	Voltage breakdown is a strongly localized phenomenon in random‐microstructure composites because the different dielectric constants of metal and polymer matrix turn a uniform external field across the structure into spatially non‐uniform local fields. The authors show that rather small computer models are sufficient to extract reliable estimates for the breakdown fields in lab‐scale samples. The Figure shows a cut through a periodic unstructured mesh of a Monte Carlo model with 27 spheres.
Bibliography:	istex:8908409D70ECD76DA6757A6C881AF826DF91CA52 This research was supported by the Dow Chemical Company, Midland, MI 48640 USA. ArticleID:ADEM200300380 ark:/67375/WNG-DJ9MSSK0-G ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23
ISSN:	1438-1656 1527-2648
DOI:	10.1002/adem.200300380