The present study investigates the combustion synthesis of Ni-Ti interfaces using a two-step combustion synthesis route. The rheological properties of Ni+Ti powder suspensions was investigated to arrive at optimum drain casting conditions for producing green interfaces. A two-step process for the combustion synthesis in vacuum was used to avoid product melting. The effect of furnace temperature and dwell time on the resulting microstructure is discussed. Melting of the product during combustion was avoided resulting in structured NiTi interfaces. Combustion synthesis process yielded intermetallic phases of NiTi with the elimination of elemental phases of Ni and Ti. The porosity decreased with increased heating time at 1050°C.