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Armor plate

  • US 8,176,831 B2
  • Filed: 04/10/2009
  • Issued: 05/15/2012
  • Est. Priority Date: 04/10/2009
  • Status: Expired due to Fees
First Claim
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1. An armor plate comprising:

  • a transformation layer comprised of a material having a tensile strength in a range between about 50 MPa to about 500 MPa and a deformation before failure of at least 20%, the transformation layer producing lattice waves when struck by a projectile; and

    an absorption layer disposed adjacent to the transformation layer such that when the transformation layer is struck by a projectile, the lattice waves generated within the transformation layer propagate into the absorption layer, the absorption layer being comprised of a base material having a first dopant dispersed therein, the base material being comprised of a metal or a ceramic, wherein the first dopant creates phonon absorption centers in the absorption layer that absorb the lattice waves.

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