EP 3462465 B1 20220216 - RARE EARTH MAGNET
Title (en)
RARE EARTH MAGNET
Title (de)
SELTENERDMAGNET
Title (fr)
AIMANT DE TERRES RARES
Publication
Application
Priority
- JP 2017191466 A 20170929
- JP 2018027405 A 20180219
Abstract (en)
[origin: EP3462465A1] [PROBLEM TO BE SOLVED] To provide a rare earth magnet in which 1-5 phase is stabilized even when Ce is used for at least part of the rare earth element and part of Co is replaced with Fe, and a production method thereof. [MEANS TO SOLVE THE PROBLEM] A rare earth magnet having a composition represented by the formula: (Ce x La (1-x-w) R' w ) v (Co y Fe (1-y) ) (100-v-z) M z , wherein R' is one or more rare earth elements other than Ce and La, M represents one or more members selected from the group consisting of a transition metal element other than Co and Fe, Ga, Al, Zn, and In, and an unavoidable impurity element, 0<x<1.0, 0<y<1.0, 0‰¤w‰¤0.1, 7.1‰¤v‰¤20.9, and 0‰¤z‰¤8.0, and satisfying, in the formula, the relationship of y‰¥-3x+1.7, and a production method thereof.
IPC 8 full level
H01F 1/055 (2006.01); H01F 41/02 (2006.01)
CPC (source: CN EP KR)
C22C 1/02 (2013.01 - CN); C22C 19/07 (2013.01 - CN); C22C 33/04 (2013.01 - CN); C22C 38/005 (2013.01 - CN KR); C22C 38/10 (2013.01 - CN); H01F 1/0551 (2013.01 - EP); H01F 1/0557 (2013.01 - CN); H01F 1/0558 (2013.01 - CN); H01F 1/0575 (2013.01 - KR); H01F 41/0253 (2013.01 - EP); H01F 1/0555 (2013.01 - EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 3462465 A1 20190403; EP 3462465 B1 20220216; CN 109585107 A 20190405; CN 109585107 B 20210126; KR 102077147 B1 20200213; KR 20190038299 A 20190408
DOCDB simple family (application)
EP 18194093 A 20180912; CN 201810986716 A 20180828; KR 20180091784 A 20180807