Description of Non-Stationary Heat Transfer in Two-Phase Polycrystalline Metal-Ceramic Composites

The aim of the paper is to describe heat transfer in the polycrystalline ceramic composite reinforced by metallic interfaces, i.e. metal matrix composites containing ceramic grains.Example of this kind of metal matrix composites is a two-phase material composed of brittle grains of WC joined by the plastic binder Co. Micromechanical modelling of the metal matrix composites response due to heat transfer was analysed numerically with the application of the nite element analysis.This process is very complicated due to the fact that the metal matrix composites material includes: elastic grains and inter-granular metallic layers that create its really complex internal structure.The heat transfer through 2 dierent phases is highly nonhomogeneous and leads to visible heat ux concentrations in the metallic phase.