Permittivity and loss tangent of copper filled epoxy

Author

Frost, N.E. ; McGrath, P.B.

Author_Institution

Dept. of Electr. & Comput. Eng., Clarkson Univ., Potsdam, NY, USA

Volume

1

fYear

1996

fDate

20-23 Oct 1996

Firstpage

303

Abstract

The influence of filler particle size and shape on the permittivity and loss tangent of an epoxy composite was investigated. Three types of copper filler were used: large sphere, small sphere, and small flake. The amount of filler was varied from 0 to 15 volume percent and the dielectric properties were investigated at 1 kHz. It was found that the samples with the small flake filler showed the highest permittivity and loss of the three materials for any given filler level. Comparisons were made with theoretical predictions using the Wagner formula and effective medium theory

Keywords

cable insulation; composite insulating materials; copper; dielectric losses; epoxy insulation; filled polymers; particle size; permittivity; 1 kHz; Cu; Cu filled epoxy; Wagner formula; dielectric properties; effective medium theory; epoxy composite; filler particle shape; filler particle size; loss tangent; permittivity; Composite materials; Conducting materials; Copper; Dielectric materials; Heating; Numerical analysis; Permittivity; Powders; Shape; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation and Dielectric Phenomena, 1996., IEEE 1996 Annual Report of the Conference on

Conference_Location

Millbrae, CA

Print_ISBN

0-7803-3580-5

Type

conf

DOI

10.1109/CEIDP.1996.564687

Filename

564687