Modeling of the electric current flow in artificial graphite

The modeling of the electrical connection of crystals in polycrystalline for the location of the contact points on the surface is performed with solving of the elliptic boundary value problem. Chain models and components of the conductivity tensor of graphite quasi-monocrystal are used for the calculation of the electrical resistivity of artificial graphite. Parameters, which affect its value and type temperature dependence of the electrical resistivity are considered. Integral dissipation of electricity along and across the layers is evaluated.