Simulations and generalized model of the effect of filler size dispersity on electrical percolation in rod networks
Author(s)Mutiso, Rose M.; Sherrott, Michelle C.; Li, Ju; Winey, Karen I.
MetadataShow full item record
We present a three-dimensional simulation of electrical conductivity in isotropic, polydisperse rod networks from which we determine the percolation threshold (ϕ[subscript c]). Existing analytical models that account for size dispersity are formulated in the slender-rod limit and are less accurate for predicting ϕ[subscript c] in composites with rods of modest L/D. Using empirical approximations from our simulation data, we generalized the excluded volume percolation model to account for both finite L/D and size dispersity, providing a solution for ϕ[subscript c] of polydisperse rod networks that is quantitatively accurate across the entire L/D range.
DepartmentMassachusetts Institute of Technology. Department of Materials Science and Engineering; Massachusetts Institute of Technology. Department of Nuclear Science and Engineering
Physical Review B
American Physical Society
Mutiso, Rose M., Michelle C. Sherrott, Ju Li, and Karen I. Winey. “Simulations and Generalized Model of the Effect of Filler Size Dispersity on Electrical Percolation in Rod Networks.” Phys. Rev. B 86, no. 21 (December 2012). © 2012 American Physical Society
Final published version