Sintered R2M17 magnet and method of fabricating a R2M17 magnet

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United States of America Patent

PATENT NO 11837391
APP PUB NO 20220406497A1
SERIAL NO

17873213

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Abstract

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A sintered R2M17 magnet is provided that comprises at least 70 Vol % of a Sm2M17 phase, wherein R is at least one of the group consisting of Ce, La, Nd, Pr, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yt, Lu and Y, and M comprises Co, Fe, Cu and Zr. In an area of the R2M17 sintered magnet of 200 by 200 μm viewed in a Kerr micrograph, an areal proportion of demagnetised regions after application of an internal opposing field of 1200 kA/m is less than 5% or less than 2%.

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Patent Owner(s)

Patent OwnerAddress
VACUUMSCHMELZE GMBH & CO KGGRUENER WEG 37 HANAU 63450

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Üstüner, Kaan Gründau-Lieblos, DE 5 2
Brombacher, Christoph Wiesbaden, DE 5 1
Katter, Matthias Alzenau, DE 30 667

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