Physics – Condensed Matter – Materials Science
Scientific paper
2011-07-11
Physics
Condensed Matter
Materials Science
25 pages, 12 figures
Scientific paper
In order to clarify how the percolation theory governs the conductivities in real materials which consist of small conductive particles, e.g., nanoparticles, with random configurations, we numerically investigate the conductivities of continuum percolation models consisting of overlapped particles using the finite difference method as a sequel of our previous article (Int. J. Mod. Phys. 21 (2010), 709). As the previous article showed the shape effect of each particle by handling different aspect ratios of spheroids, in this article we numerically reveal influences of the agglomeration of the particles on conductivities after we model the agglomerated configuration by employing a simple numerical algorithm which simulate an agglomerated configuration of particles by a natural parameter. We conclude that the dominant agglomeration effect on the conductivities can be interpreted as the size effect of an analyzed region, and shape of the agglomerated clusters also has an effect on its universal property.
Matsutani Shigeki
Shimosako Yoshiyuki
Wang Yunhong
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