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A schematic for the scaling relation of the electric conductivity and the CNT concentration for two kinds of composites. In this figure, we assume that and a prefactor for the scaling relation are the same for the two composites.
(a) A snapshot of an equilibrated mixture of CNTs (cyan) and X junctions (red). The shapes of (b) a CNT, (c) an X junction, and (d) a Y junction. In the insets, junctions are magnified.
A snapshot of a percolating cluster of a mixture of CNTs and X junctions.
Simulation results for as a function of for mixtures of CNTs and X junctions . and correspond to the system with only CNTs and the system with only X junctions, respectively. In the inset is the percolation threshold concentration as a function of the mole fraction of X junctions .
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