Patent ID: 7082868

Claim:
A ballistic armor capable of withstanding penetration by a projectile impacting the armor, the ballistic armor comprising: a first energy absorbing plate consisting essentially of a metallic material, said metallic material being at least one of a metallic material that undergoes a reversible phase change upon absorbing energy and a metallic material that exhibits an elastic strain deformation of at least 5%; and a second plate of a metallic material that is contiguous with and metallurgically bonded to the first energy absorbing plate, wherein said second plate comprises a material selected from the group consisting of an α titanium alloy that is at least one of grades 1–4 CPTi, an αβ titanium alloy that is Ti(6-4), and a β titanium alloy that is at least one of Ti(10-2-3) or Ti(15-3-3-3): and the metallic material of said second plate is different from said metallic material of said first energy absorbing plate.