A ferromagnetic powder composition and the method for obtaining thereof

Abstract

A ferromagnetic powder composition including soft magnetic iron based core particles, wherein the average size of the core particles is in the range 20-1000 μm, wherein the surface of the core particles is at least partially coated with an at least partially covering first coating including at least one silicate of the general formula (M2O)α(SiO2)β, wherein α is moles of M2O, β is moles of SiO2, and the β/α molar ratio is in the interval from 0.5 to 4.1, wherein the first coating is in direct contact with a surface of the core particles of the ferromagnetic powder, and wherein the silicate is present in the amount of ferromagnetic powder composition comprises 0.02 to 1.0 wt % of at least one silicate calculated based on the total weight of the ferromagnetic powder composition. There is further provided a method for coating the soft-magnetic iron-based core particles and manufacturing of parts.

Dependencies are inferred from the claim text.