Numerical Simulation of Combustion Synthesis of Aluminide Intermetallic Compounds

Combustion synth esis is a special thermophysico-chemical process applied for production of intermetallic compounds. In the present work, a reaction-diffusion numerical model was developed to analyze the combustion synthesis of aluminide intermetallics by self-propagating high-temperature synthesis process. In order to verify the reliability ofthe numerical model, an experimental setup was designed and used to perfo rm the combustion synth esis of nickel and titanium aluminides. The developed model was furth er used to determine the temperature history of a powder mixture compact during self-propagating high-temperature synthesis . The effec t ofcompact relative density on combustion temperature and wave propagation velocity was also studied.