COMPOSITE MATERIAL FOR PROTECTION AGAINST ELECTROMAGNETIC RADIATION Russian patent published in 2011 - IPC G12B17/02 B82B1/00 H05K9/00 

FIELD: physics.

SUBSTANCE: proposed composite material comprises polymer base wherein distributed are particles of (Fe, Si) or - Co compounds with nanocrystalline structure of bulk density making (0.6÷1.4)·10^-5 1/nm³. In compliance with this invention, polymer base for fixation of position of polycrystalline structure powder particles is made up of alternating structure elements arranged at 90° to each other and representing elongated particles located in parallel lines. Note here that particles located on the right and left of said base are shifted by half the maximum size of particles. Note also that optimum range of bulk densities exceeds 0.6·10^-5 1/nm³ but is less than 1.4·10^-5 1/nm³.

EFFECT: higher efficiency of protection.