Reaction synthesis and microstructure of AlTi preform for composite reinforcing

Production method of intermetallic porous perform for reinforcing of composite materials were clabontcd. Mixterc of aluminum and titanium powder was cold isostaticalIy prcsscd (ClPed) and such produced cylindrical pill was ignited in microwave field. Obtained structures usually have open porosity what making thcm enables for pressure infil [rat ion with mctltcn mctal. Thc investigations of ~ h c structure revealed uniform morphology and globular structure of AI-Ti compound which achieved much higher microhardness than substrates. Obtained perform can be widcly used as the reinforcement to produce hybrid composite materials by the infiltration method. Aluminum casting alloys can be locally reinforced to improve hardness and resistance 10 oxidization at high tcrnpcraturc.