Novel neodymium iron boron magnetic material

A magnetic material, NdFeB technology, applied in the field of new NdFeB magnetic materials, can solve the problems of high price, no price advantage, poor high temperature application performance, etc., and achieve the effect of cost reduction
CN101694797AActive Publication Date: 2010-04-14麦格昆磁(天津)有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
麦格昆磁(天津)有限公司
Publication Date
2010-04-14

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Abstract

The invention discloses a novel neodymium iron boron magnetic material, which is characterized in that the general molecular formula of the neodymium iron boron magnetic material is RExNd(0.27-x)Fe0.72B0.01, wherein the RE is selected from at least one of lanthanide / actinium metals except neodymium, and x is the weight ratio of the RE and is about 0.027-0.108. For the novel neodymium iron boron magnetic material preferably selected in the invention, rare earth element cerium (Ce) replaces the partial neodymium (Nd), good magnetism and corrosion resistance can be still kept basically, and has remarkable cost and price advantages are realized.
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Description

technical field

[0001] The present invention relates to a novel NdFeB magnetic material based on a new type of NdFeB magnetic material, in particular to a high-performance isotropic NdFeB magnetic material doped with at least one lanthanide rare earth element, more specifically, the present invention relates to a lanthanide rare earth element cerium (Ce) doped NdFeB magnetic material. Background technique

[0002] At present, the new material industry, which is the foundation of the high-tech industry, has attracted much attention. As an important part of the new material industry, rare earth permanent magnet materials are widely used in energy, transportation, machinery, medical care, IT, home appliances and other industries. It is one of the important symbols of national strength and national economic development level. In particular, NdFeB, as the third-generation rare earth permanent magnet material, has broad market prospects and is mainly used in computer disk drives...

Claims

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