Effect of process parameter on the combustion temperature of laser-induced self-propagating high-temperature synthesized Al/TiC composites

Ignition phenomena in self-propagating high-temperature synthesis (SHS) of Al–C–Ti system were studied. The experiments were performed in quasi-adiabatic conditions. A CO2 laser was used as external energy source and was set to the influence of Al content, laser power and particle sizes of powder on the ignition behavior. The results showed the combustion temperature depended strongly on Al content, laser power and particle sizes of Ti and C; but the particle size of Al had little effect on combustion temperature, at the same time, the effect of Al content on adiabatic combustion temperature, Tad, was calculated. According to the calculation result, adiabatic temperature decreased with the increasing of Al content.