Shock Wave Assited Chemical Reactions and Fabrication of Tantalum Aluminates

The different composition Ta-Al based reactive blends of powders formed into cylindrical rods using two stage a hot explosive consolidation (HEC) method. The aims of investigation were to fabricate tantalum aluminates near to theoretical densities and to investigate its structure/ property relationship. The processing temperature were changed up to 10000C. The intensity of loading was under the 10GPa. The investigation showed that the application of two stage HEC method is beneficial to the consolidation and synthesis of the Tantalum aluminates, resulting in near theoretical densities, good hardness values and the full formation of TaAl3 intermetallic compounds behind the shock wave front. The structure and property of the samples obtained, as well as the result of formation of tantalum aluminates depends on phase content of the precursors and shock loading conditions too.