Studies on dielectric behavior of insulator-conductor composites

Rajagopal, C and Satyam, M (1979) Studies on dielectric behavior of insulator-conductor composites. In: Journal of Applied Physics, 50 (12). pp. 8193-8197.

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Abstract

This paper describes the dielectric behavior of an insulator-conductor composite, namely, the wax-graphite composite. The variation of specific capacitance of these composites with parameters such as volume fraction and grain size of the conducting particles and temperature has been studied. These observed variations have been explained using the same model [C. Rajagopal and M. Satyam, J. Appl. Phys. 49, 5536 (1978)] which explains electrical conduction in composites. The specific capacitance of these materials appears to be governed by the contact capacitance between the conducting particles and the number of contacts each particle has with its neighbors. The variation of specific capacitance with temperature is attributed to the change in contact area.

Item Type:	Journal Article
Publication:	Journal of Applied Physics
Publisher:	The American Institute of Physics
Additional Information:	Copyright of this article belongs to the American Institute of Physics.
Department/Centre:	Division of Electrical Sciences > Electrical Communication Engineering
Date Deposited:	03 Feb 2010 09:13
Last Modified:	19 Sep 2010 05:45
URI:	http://eprints.iisc.ac.in/id/eprint/23198

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