Cu–Ti composite particles were obtained using the method of copper deposition from its sulfate solution onto titanium powder particles with simultaneous mechanical activation (MA) of the mixture in an AGO-2 planetary ball mill for 5 min. CuSO 4 ·5H 2 O concentration in the solutions was 10 and 16 % providing a molar ratio of Cu/Ti = 0.85 and 1.36, respectively, in case of complete copper reduction. When mechanically activated, copper is rapidly reduced to a highly dispersed partially amorphous powder and composite particles with a fine laminate structure and high reactivity are formed. The composite powders obtained were washed and stored in argon atmosphere, since reduced copper is highly active and rapidly oxidizes in air to Cu 2 O. After drying, the mixture was additionally mechanically activated during 5 min. Billets 3 mm in diameter and 1.5 mm in height were pressed from the obtained powders and heated in atmosphere to 700–1200 °C. When the samples were heated, an intense reaction began with heat release (thermal explosion) and formation of intermetallic compounds of TiCu, Ti 2 Cu 3 and Ti 2 Cu. The critical ignition temperature for the composite powders obtained by MA with simultaneous copper deposition from its solution is 480 °С, which is 400 °С lower than the ignition temperature of a conventional mixture of titanium and copper powders. The alloy has a dendritic structure at heating temperatures close to the melting point. When the melting point is exceeded by more than 100 °C, phase distribution in the alloy becomes more uniform, and their size decreases.