| 摘要 |
A magnet core (1) made of a composite of platelet-shaped particles of a thickness D and a binder has a particularly linear relative permeability curve over a pre-magnetised constant field. For this purpose, the platelet-shaped particles (5) are provided with an amorphous volume matrix (8), wherein areas (9) with a crystalline structure having a thickness d of 0.04*D≰d≰0.25*D and covering a proportion x of x≧0.1 of the surface (6, 7) of the particle (5) are embedded on the surface (6, 7) of the particle (5). |
