Composite magnet with magnetically hard and soft phases

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United States of America Patent

PATENT NO 11189405
APP PUB NO 20200258663A1
SERIAL NO

16270115

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Abstract

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According to an embodiment, a composite permanent magnet includes a matrix of magnetically hard phase grains having an average grain size of 10 nm to 50 μm; and magnetically soft phase grains embedded within the matrix, and having an average grain size of at least 50 nm, each grain having an elongated shape with an aspect ratio of at least 2:1. According to another embodiment, a composite permanent magnet includes a matrix of magnetically hard phase grains having an average grain size of 10 nm to 50 μm; and magnetically soft phase grains embedded within the matrix, and having an average grain width of at least 50 nm, an average grain height of 20 to 500 nm, and an aspect ratio of at least 2:1. According to yet another embodiment, a method of forming a composite permanent magnet is also provided.

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Patent Owner(s)

Patent OwnerAddress
FORD GLOBAL TECHNOLOGIES LLCONE AMERICAN ROAD FOURTH FLOOR DEARBORN MI 48126-2701

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Degner, Michael W Novi, US 304 2776
Liang, Feng Troy, US 376 3176
Rong, Chuanbing Canton, US 23 7

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