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Method for manufacturing manganese-bismuth alloy

A technology of alloys and magnetic particles, applied in chemical instruments and methods, magnetic objects, separation of solids from solids by air flow, etc., can solve problems such as the difficulty of MnBi alloys

Active Publication Date: 2021-09-21
FORD GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But obtaining MnBi alloys with high-purity magnetic low-temperature phase (LTP) is still difficult, in part because the reaction between manganese (Mn) and bismuth (Bi) is peritectic

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  • Method for manufacturing manganese-bismuth alloy
  • Method for manufacturing manganese-bismuth alloy
  • Method for manufacturing manganese-bismuth alloy

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Embodiment Construction

[0012] Embodiments of the disclosure are described herein. It will be understood, however, that the disclosed embodiments are merely examples and that other embodiments may take various and alternative forms. The figures are not necessarily to scale; some features may be exaggerated or minimized to show details of particular components. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a representative basis for teaching one skilled in the art to variously employ the present invention. As will be understood by those of ordinary skill in the art, various features shown and described with reference to any one figure may be combined with features shown in one or more figures to produce Example. Combinations of features shown provide representative embodiments for particular applications. However, various combinations and modifications of the features consistent with the teachings of the present disclosur...

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Abstract

Provided is a method for manufacturing a manganese-bismuth alloy. A method of increasing the volume ratio of magnetic particles in a MnBi alloy comprises operating a jet mill fed with MnBi alloy powder comprising magnetic particles and non-magnetic particles with air flow parameters selected so that only for the magnetic particles, the jet mill The gas resistance in the machine is greater than the centrifugal force to separate the magnetic particles from the non-magnetic particles.

Description

technical field [0001] The present disclosure relates to a manganese bismuth (MnBi) alloy and a method of manufacturing the MnBi alloy, a method of increasing the volume ratio of a magnetic phase in a MnBi material, and a method of separating a magnetic phase and a nonmagnetic phase in a MnBi alloy Methods. Background technique [0002] MnBi alloys have been considered as suitable replacements for rare earth-free permanent magnets because of their unique properties such as high coercive force with increasing temperature. But obtaining a magnetic low temperature phase (LTP) MnBi alloy with high purity remains difficult, in part because the reaction between manganese (Mn) and bismuth (Bi) is peritectic. Contents of the invention [0003] A method of increasing the volume ratio of magnetic particles in a MnBi alloy is disclosed. The method may include operating a jet mill supplied with MnBi alloy powder comprising magnetic particles and non-magnetic particles with air flow ...

Claims

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Application Information

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IPC IPC(8): B02C19/06
CPCB02C19/06B07B7/086B07B7/10B22F2999/00H01F1/047B22F9/04C22C12/00C22C22/00B02C19/063B02C23/08B07B7/08B22F2009/044C22C2202/02
Inventor 李万锋
Owner FORD GLOBAL TECH LLC