Investigation of effective thermal conductivity of SiC foam ceramics with various pore densities

Abstract SiC foam ceramics are extensively used in numerous industrial applications that require high-temperature conditions. They can be as thermal insulation, structural catalyst supports and energy storage materials. In this article, effective conductivity of at high temperature is studied by steady plane heat source method. This research aims to investigate the variations with pore density, stacking thickness, temperature, arrangement structure ceramics. By a comparison conductivities various density ceramic sheets, experimental results show decreases increase thickness. The increases significantly when more than 200°C. For modular ceramics, increasing average sudden change between sheets not conducive conductivity.