Patent ID: 9640306
Date: 2017-05-02
CPC Classifications: B22F,H01F

Claim:
1. A ferromagnetic powder composition comprising soft magnetic iron-based core particles having an apparent density of 3.3-3.57 g/ml and having a rounded irregular shape or a generally spherical shape, and wherein the surface of the core particles is provided with a phosphorus-based inorganic insulating layer, and at least one metal-organic layer, located outside the first phosphorus-based inorganic insulating layer, of a metal-organic compound having the following general formula: wherein: M is a central atom selected from Si, Ti, Al, or Zr; O is oxygen; R R n is the number of repeatable units being an integer between 1 and 20; x is an integer between 0 and 1; y is an integer between 1 and 2.