Member, American Ceramic Society.
Electrical Resistivity of Composites
Article first published online: 8 MAR 2005
Journal of the American Ceramic Society
Volume 73, Issue 8, pages 2187–2203, August 1990
How to Cite
McLachlan, D. S., Blaszkiewicz, M. and Newnham, R. E. (1990), Electrical Resistivity of Composites. Journal of the American Ceramic Society, 73: 2187–2203. doi: 10.1111/j.1151-2916.1990.tb07576.x
A. H. Heuer—contributing editor
- Issue published online: 8 MAR 2005
- Article first published online: 8 MAR 2005
- Manuscript No. 197710. Received March 20, 1990; approved April 3, 1990.
- electrical conductivity;
Percolation and Bruggeman's effective media theories, as they apply to the electrical conductivity of composites, are reviewed, and a general effective media (GEM) equation, which combines most aspects of both percolation and effective media theories, is introduced. It is then shown that the GEM equation quantitatively fits electrical resistivity (conductivity) as a function of the volume fraction data for binary composites. The parameters used to fit the experimental data are the electrical resistivities of the two phases, the percolation threshold for the lower resistivity phase (ôc), and an exponent t. Preliminary work, showing how the GEM equation can be used to model the piezoresistivity of composites by postulating that ôc is a function of the independent variable, is also presented.