Rezumat
Are investigated dielectrics (dielectric permeability of ε, tangents of a corner of dielectric loss tagδ, specific volumetric resistance ρv) and strengths (mechanical strengths σ and electrical strength E) properties of compositions on the basis of polymers (of polypropylene, polyethylene and polyvinylidentflouride) and piezoceramics, magnetic additives. The mechanisms of change dielectrics (ε, tagδ, ρv) and strength (σ, E) properties of polymeric compositions are given depending on the volumetric contents of the entered additives.