Theory of electrical conductivities of ferrogels
Abstract
Conductive organic polymers can be formulated with polymers that incorporate fine dispersed metallic particles. In this work, we present a general model for ferrogels which are chemically cross-linked polymer networks swollen with a ferrofluid. Our aim is to study the effect of the shape and/or material (conductivity) anisotropy on the effective electrical conductivity of the ferrogel in the presence of an external magnetic field. Our theory can reproduce the known results, and provides a link between the particle property and orientation distribution and the effective electrical conductivity. To this end, we find that material (conductivity) anisotropies are more important to yield a high effective electrical conductivity than shape anisotropies, while magnetic fields can offer a correction.
Keywords
Cite
@article{arxiv.physics/0407129,
title = {Theory of electrical conductivities of ferrogels},
author = {J. P. Huang},
journal= {arXiv preprint arXiv:physics/0407129},
year = {2016}
}
Comments
15 pages, 2 figures