The conductivity and percolation concentration of the composite material filled with randomly distributed carbon nanotubes were simulated as a function of the mechanical deformation. Nanotubes were modelled as the hard-core ellipsoids of revolution with high aspect ratio. The evident anisotropy was observed in the percolation threshold and conductivity. The minimal mean values of the percolation of 4.6 vol. % and maximal conductivity of 0.74 S/m were found for the isotropic composite. Being slightly aligned, the composite demonstrates lower percolation concentration and conductivity along the orientation of the nanotubes compared to the perpendicular arrangement.
Bibliographical noteKAUST Repository Item: Exported on 2020-10-01
Acknowledgements: Massive GPU computations were performed on KAUST’s Ibex HPC. We thank KAUST Supercomputing Core Lab team and especially to Mohsin Shaikh and Passant Hafez for assistance with execution tasks on Volta and Pascal GPU nodes