MULTILAYER PACKET FOR APPARATUS FOR PERSONAL PROTECTION FROM IMPACT ACTION (VERSIONS) Russian patent published in 2010 - IPC F41H5/04 F41H1/02 

FIELD: physics.

SUBSTANCE: two versions of a multilayer packet are proposed. In the first version, the packet consists of layers with thickness not greater than 300 mcm. Each layer includes aluminium foil 1 and a porous ceramic film 2 on one or both sides of the foil 1 and integral with it. Thickness of the film 2 is equal to or greater than thickness of the foil, and the pores 3 are perpendicular to the surface of the layer. The layers of the packet are stuck together mainly by a film adhesive deposited on each layer on the entire surface. The porous ceramic film on the foil of any layer can be made through anodic coating in an electrolyte. In the second version pores 3 of the ceramic film 2 in each layer are partially or completely filled with nanoparticles 4 of tough metals or their alloys. Threadlike nanoparticles 4 with diametre of 0.01-0.20 mcm and length 10-200 mcm can be used.

EFFECT: increased ballistic stability of the packet.

11 cl, 2 dwg, 3 ex