Study on the Electrical Conductivity of Inorganic Conductive Network in Sediments

Abstract The inorganic conductive network provides an essential channel for electron transport and supports the biogeochemical process in sediments, but mechanism of is not well understood. In this work, theory circuit electronics was applied to build a three-dimensional (3D) resistivity simulation model exploring analysing effect particle size on characteristic network. order simulate real sediment environment, composites with silica (SiO 2 ) particles as matrix using magnetite (Fe 3 O 4 fillers are constructed. results reveal that electrical conductivity these rises nonlinearly increasing volume fraction fillers, which consistent percolation theory. Moreover, small-sized or large-sized confirmed exert positive part enhancing composites.