Soft magnetic composite material and corresponding method for preparing soft magnetic composite material

A composite material, soft magnetic technology, applied in the direction of inorganic material magnetism, inductor/transformer/magnet manufacturing, electrical components, etc., can solve problems such as lack of mechanical stability, achieve high permeability, low coercivity, low eddy current The effect of loss

Active Publication Date: 2020-08-04
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Existing soft magnetic composites have good magnetism with increased resistance in all three dimensions, where the material simultaneously suffers from a lack of mechanical stability

Method used

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  • Soft magnetic composite material and corresponding method for preparing soft magnetic composite material
  • Soft magnetic composite material and corresponding method for preparing soft magnetic composite material
  • Soft magnetic composite material and corresponding method for preparing soft magnetic composite material

Examples

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Embodiment Construction

[0026] In the figures, identical reference numbers indicate identical or functionally equivalent elements.

[0027] figure 1 A schematic diagram for explaining a soft magnetic composite material according to an embodiment of the present invention is shown.

[0028] Symbol V1 shows the soft magnetic composite material V1. Soft magnetic composite V1 has numerous crystalline pure iron-based particles E1 and bulk metallic glass G1. The plurality of crystalline pure iron-based particles E1 has a bulk metallic glass G1 coating, wherein the plurality of crystalline pure iron-based particles E1 are in contact with each other via the bulk metallic glass G1 coating.

[0029] From figure 1 It can be seen that a bulk metallic glass G1 is formed on the outer surface A1 of the crystalline pure iron-based particle E1. This means that crystalline pure iron-based particles adjacent via the bulk metallic glass G1 can be connected, in particular indirectly, via the bulk metallic glass G1 ....

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PUM

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Abstract

The invention relates to a soft magnetic composite. Said soft magnetic composite comprises a plurality of crystalline pure iron base particles (E1) and a solid metallic glass (G1), wherein the plurality of crystalline pure iron base particles (E1) have a coating made from the bulk metallic glass (G1) and the plurality of crystalline pure iron base particles (E1) are in contact with each other via the covering made from the bulk metallic glass (G1). The invention also relates to two alternative methods for producing a soft magnetic composite.

Description

technical field [0001] The invention provides a soft magnetic composite material and a corresponding method for preparing the soft magnetic composite material. Background technique [0002] The print International Materials Reviews 2013 Vol. 58 No. 3 pp. 131-166 describes an iron-based bulk metallic glass. [0003] Existing soft magnetic composites have good magnetism with increased resistance in all three dimensions, where the material simultaneously suffers from a lack of mechanical stability. Whereas a heater has good mechanical stability, wherein at the same time the impedance increases only in one dimension. In this context, dimensions are to be understood as spatial directions, ie in the case of conventional steel sheets for electrical purposes, the magnetic flux is guided in two dimensions (in a plane), where its impedance is orthogonal, ie points into the third dimension. [0004] However, for applications in actuators or motors, soft magnetic composites with a com...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F41/02H01F1/26
CPCH01F1/26H01F41/0246
Inventor A.维尔德I.舍伦贝格J.布格豪斯
Owner ROBERT BOSCH GMBH
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