Ferromagnetic powder composition

A composition comprising particles A and particles B, each of the particles A and B comprising a core, the core of the particles A being a soft magnetic iron based core, and the core of the particles B being formed from an Fe—Si alloy,

• wherein an amount of a total of the particles A and B relative to a total weight of the composition is 85% by weight or more,
• wherein the core of the particles B consists of Fe, Si, and less than 2% of other elements,
• wherein the surface of each core of the particles A and B is coated with a phosphorus-containing insulating layer A1 and B1, respectively,
• and wherein the particles A having the insulating coating layer A1 are provided with a further layer A2 on top of the layer A1, the layer A2 being formed from a compound of formula (I), or a reaction product of formula (I):
• M(OR1)x(R2)y Formula (I)
• wherein M is selected from Si, Ti, Al, or Zr;
• R1 is a straight or branched alkyl group having 4 or less carbon atoms;
• R2 is an organic group optionally containing a functional group, and
• x+y are integers denoting the number of groups OR1 and R2, respectively, and if M is Si, Zr or Ti, x is chosen from 1, 2 and 3, and y is chosen from 1, 2 and 3, with the proviso that (x+y)=4;
• and
• if M is Al, then x is chosen from 1 and 2, and y is chosen from 1 and 2, with the proviso that (x+y)=3;
• wherein the reaction product is a product obtained by a reaction of one molecule of a compound of formula (I) with one or more molecules of a compound of formula (I) and/or with the layer A1;
• and
• wherein the particles A further comprise particles C that are adhered to the layer A2 or which are incorporated into the layer A2, the particles C being particles of a material having Mohs hardness of 3.5 or less.