EP 4379755 A1 20240605 - SAMARIUM-BASED RARE EARTH PERMANENT MAGNET MATERIAL, AND PREPARATION METHOD THEREFOR AND APPLICATION THEREOF
Title (en)
SAMARIUM-BASED RARE EARTH PERMANENT MAGNET MATERIAL, AND PREPARATION METHOD THEREFOR AND APPLICATION THEREOF
Title (de)
SAMARIUM-BASIERTES SELTENERD-PERMANENTMAGNETMATERIAL UND HERSTELLUNGSVERFAHREN DAFÜR UND ANWENDUNG DAVON
Title (fr)
MATÉRIAU D'AIMANT PERMANENT AUX TERRES RARES À BASE DE SAMARIUM, SON PROCÉDÉ DE PRÉPARATION ET SON APPLICATION
Publication
Application
Priority
- CN 202210696121 A 20220620
- CN 2023097137 W 20230530
Abstract (en)
Disclosed in the present invention are a samarium-based rare earth permanent magnet material, and a preparation method therefor and an application thereof. In the samarium-based rare earth permanent magnet material Sm<sub>2</sub>Fe<sub>α</sub>Cu<sub>β</sub>V<sub>γ</sub>Mo<sub>δ</sub>N<sub>ε</sub>, 11.5 ≤ α ≤ 17.5, 0.1 ≤ β ≤ 0.4, 1.0 ≤ y ≤ 1.8, 0 ≤ δ ≤ 1.0, and 2.9 ≤ ε ≤ 4.0. According to the samarium-based rare earth permanent magnet material provided by the present application, a good balance of the remanence and the coercivity is promoted by doping with vanadium, copper, and molybdenum and adjusting to an appropriate atomic ratio range, such that the samarium-based rare earth permanent magnet material has excellent comprehensive magnetic performance. The preparation method provided by the present application is simple to operate, low in cost, and suitable for the fields of small and special motors, magnetic sensors, or audio equipment.
IPC 8 full level
H01F 1/059 (2006.01); H01F 1/08 (2006.01); H01F 41/02 (2006.01)
CPC (source: CN EP)
H01F 1/0577 (2013.01 - EP); H01F 1/059 (2013.01 - CN EP); H01F 1/08 (2013.01 - CN EP); H01F 41/0253 (2013.01 - CN); H01F 41/026 (2013.01 - CN); H01F 41/0266 (2013.01 - CN); H01F 41/0293 (2013.01 - CN 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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
EP 4379755 A1 20240605; CN 114974779 A 20220830; WO 2023246439 A1 20231228
DOCDB simple family (application)
EP 23826088 A 20230530; CN 202210696121 A 20220620; CN 2023097137 W 20230530