FIELD: chemistry.
SUBSTANCE: invention relates to powder metallurgy, particularly to production of a ferromagnetic powered composition. The composition can be used as a core in inductance coils, stators and rotors of electrical machines, drives, sensors and transformer cores. The composition contains a lubricant in form of solid particles and magnetically soft basic particles based on iron, the surface of which is coated with a first inorganic insulating layer based on phosphorus and at least one organometallic layer outside the first layer. The organometallic compound has the following general formula: R1[(R1)×(R2)y(MOn-1)]nR1, where M is a central atom selected from Si, Ti, Al or Zr; O is oxygen; R1 is a hydrolysable group; R2 is an organic part in which at least one R2 contains at least one amino group; n is the number of repeating structural units ranging from 1 to 20; x is an integer from 0 to 1; y is an integer from 1 to 2. The organometallic layer is strongly bound to a metal or semi-metal compound in form of solid particles, having Mohs hardness of less than 3.5.
EFFECT: obtaining material having high strength, maximum magnetic permittivity and inductance while minimising hysteresis loss and reducing eddy-current loss.
15 cl, 5 tbl, 5 ex
