Laser induced reaction joining of metal matrix composite Available to Purchase

A Laser Induced Reaction Joining technique is employed initially for SiC-particulate/Al-alloy composite which further can be extended to a variety of metal matrix composite systems including combinations of Gr/Al, B/Al, B₄C/Mg, Steel/Al, W/Al, A1₂O₃/A1, and Gr/Cu. These composites are excellent for use in various automotive, aerospace and electronic applications. Joints in composites are produced by suitable material product as a result of interaction between composite and reactive filler material induced by laser energy in the joint region. Such reaction product minimizes or eliminates the formation of deleterious aluminum carbide phase in the joint region depending upon the type and nature of the interfacial reactive filler material and also the laser processing parameters. A laser beam is utilized to both synthesize the interfacial reactant mixture and to heat the base material adjacent to the joint region to minimize the thermal stresses. Preliminary observations of the study are reported.