EP 1072043 A1 20010131 - PERMANENT MAGNETIC MATERIALS OF THE R-FE-B TYPE AND PROCESS OF MANUFACTURE
Title (en)
PERMANENT MAGNETIC MATERIALS OF THE R-FE-B TYPE AND PROCESS OF MANUFACTURE
Title (de)
DAUERMAGNETMATERIALIEN VOM TYP R-FE-B UND HERSTELLUNGSVERFAHREN DAFÜR
Title (fr)
MATIERES MAGNETIQUES PERMANENTES DE TYPE R-FE-B ET PROCEDE DE FABRICATION
Publication
Application
Priority
- CN 99102207 A 19990212
- US 0002649 W 20000202
Abstract (en)
[origin: WO0048208A1] An Fe-B-R type permanent magnetic, consisting of: 13-19 atomic % R, where R essentially consists of a mixture of rare earth elements Nd and/or Pr, and Ce, where Ce is between 0.2 and 5.0 wt.% of R; 4-20 atomic % B, and the balance comprising Fe. In a preferred aspect, R comprises 15-16 atomic % B; of which Ce is approximately 0.5 % and the remaining rare earths Pr and Nd are in a ratio of 3:1. A process of producing an Fe-B-R permanent magnet as described above, and an Fe-B-R magnetic material made by such process, are also disclosed.
IPC 1-7
IPC 8 full level
H01F 1/057 (2006.01)
CPC (source: EP)
H01F 1/057 (2013.01); H01F 1/0577 (2013.01)
Citation (search report)
See references of WO 0048208A1
Designated contracting state (EPC)
DE GB NL
DOCDB simple family (publication)
WO 0048208 A1 20000817; WO 0048208 A9 20010809; AU 2751500 A 20000829; CN 1251252 C 20060412; CN 1263349 A 20000816; DE 60010385 D1 20040609; DE 60010385 T2 20050504; EP 1072043 A1 20010131; EP 1072043 B1 20040506
DOCDB simple family (application)
US 0002649 W 20000202; AU 2751500 A 20000202; CN 99102207 A 19990212; DE 60010385 T 20000202; EP 00905918 A 20000202