Abstract: The effects of Fe content, carbon sources and the particle size of Ti and C on the SHS processes of Ti-C-Fe and structure charactristics of synthesized powders
were studied. It is shown that combustion temperature becomes lower and particle sizes of synthesized product become smaller with the increasing of Fe content and
the velocity of combustion wave is highest at 10wt% of Fe content. This is due to the effect of Fe liquid. The composition of TiC synthesized with graphite is more close
to the stoichiometric TiC, the size of TiC particles is larger and combustion temperature and velocity of combustion wave are higher than with carbon black. The
structure difference between the two kinds of carbon is responsible for the effect of carbon. Smaller Ti and C particle sizes do good to combustion synthesis of
the system. With the increasing of Fe content the combustion model becomes pulsating and spin combustion from steady combustion. The combustion reaction for the system
can’nt sustain if Fe content is higher than 60wt%.

Key words: SHS Ti-C-Fe system process