Abstract
The (70-x)TiC-xTiB2-26Fe-4Al (mass%) cermets were fabricated by mechanical milling of TiC, TiB2, Fe and Al powders and subsequent pulse current sintering method. The highly dense cermets were obtained by a reaction for formation of Fe-Al intermetallic compound between Fe and molten Al. The prepared cermets were mainly composed of TiC, TiB2 and Fe-Al intermetallic compound. In addition, small amount of Fe2B was observed. The thermal conductivity of prepared cermets lineally increased with increasing TiB2 volume fraction. The measured thermal conductivities were higher than those of the theoretical values. The deflecting strength and hardness of the cermets achieved 0.8 GPa and HRA 89, respectively.
