A harmonic structured composite with a fine grain Ti 48 molAl alloy network and dispersed coarse grain pure titanium is produced by extrusion sintering using the spark plasma sintering (SPS) process. The conditions of extrusion sintering by the SPS process are a sintering temperature of 1073 K, a holding time of 1.8 ks and an extrusion pressure of 100 MPa with a pressurization rate of approximately 0.1 MPa/s. The extrusion compact has a rod shape with q5×48 mm. The extrusion compact is composed of an elongated harmonic structure with the Ti 48 molAl alloy network and the dispersed pure titanium. The Vickers hardness of the extrusion compact is about 220 Hv, which is almost the same as that of a conventional compact. Keywords: extrusion sintering, harmonic structure, mechanical milling, spark plasma sintering, titanium aluminum alloy
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