Method for the production of magnet cores, magnet core and inductive component with a magnet core

US8298352B2 · kind B2 · utility

Assignee

• Vacuumschmelze GmbH & Co. KG · DE

Inventor

• Markus Brunner · Bessenbach, DE

Key dates

• Filing date: Jul 23, 2008
• Grant date: Oct 30, 2012
• Expiry date: Jun 15, 2029

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01F17/04
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

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).