Abstract:Titanium carbide particle reinforced tungsten matrix (TiC p/W) composites were fabricated using a hot pressing technique The effects of temperature and TiC p content on the thermophysical properties of the composites have been investigated The results show that as temperature increases, specific heat and coefficient of thermal expansion increase monotonically, thermal diffusivity decreases slightly, and thermal conductivity increases gradually The specific heat and the coefficient of thermal expansion of TiC p/W composites increase with increasing TiC p content, according to the mixture ruler The thermal diffusivity and conductivity of TiC p/W composites, which are sensitive to microstructure, decrease greatly with increasing TiC p content The experimental values of the thermal conductivity are considerably lower than the theoretical ones as result of diffraction from defects such as grain boundary and pores in the thermal conducting particles