EP 0124655 A2 19841114 - Isotropic permanent magnets and process for producing same.
Title (en)
Isotropic permanent magnets and process for producing same.
Title (de)
Isotrope permanente Magnete und Verfahren zu ihrer Herstellung.
Title (fr)
Aimants permanents isotropes et procédé pour leur fabrication.
Publication
Application
Priority
- JP 7909683 A 19830506
- JP 7909883 A 19830506
Abstract (en)
Isotropic permanent magnet formed of a sintered body having a mean crystal grain size of 1-160 microns and a major phase of tetragonal system comprising, in atomic percent, 10-25% of R wherein R represents at least one of rare-earth elements including Y,3-23% of B and the balance being Fe. As additional elements M, Al, Ti, V, Cr, Mn, Zr, Hf, Nb, Ta, Mo, Ge, Sb, Sn, Bi, Ni or W may be incorporated. The magnets can be produced through a powder metallurgical process resulting in high magnetic properties, e.g., up to 7 MGOe or higher energy product.
IPC 1-7
IPC 8 full level
H01F 1/057 (2006.01)
CPC (source: EP)
H01F 1/0577 (2013.01)
Designated contracting state (EPC)
BE CH DE FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0124655 A2 19841114; EP 0124655 A3 19860910; EP 0124655 B1 19890920; CA 1277159 C 19901204; DE 3380612 D1 19891026; HK 68390 A 19900907; SG 49090 G 19900817
DOCDB simple family (application)
EP 83113252 A 19831230; CA 444488 A 19831230; DE 3380612 T 19831230; HK 68390 A 19900830; SG 49090 A 19900704