Highly quenchable fe-based rare earth materials for ferrite...

H - Electricity – 01 – F

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

H01F 1/057 (2006.01) B22D 11/00 (2006.01) C04B 35/04 (2006.01)

Patent

CA 2515221

The present invention relates to highly quenchable Fe-based rare earth magnetic materials that are made by rapid solidification process and exhibit good magnetic properties and thermal stability. More specifically, the invention relates to isotropic Nd-Fe-B type magnetic materials made from a rapid solidification process with a lower optimal wheel speed and a broader optimal wheel speed window than those used in producing conventional magnetic materials. The materials exhibit remanence (Br) and intrinsic coercivity (Hci) values of between 7.0 to 8.5 kG and 6.5 to 9.9 kOe, respectively, at room temperature. The invention also relates to process of making the materials and to bonded magnets made from the magnetic materials, which are suitable for direct replacement of anisotropic sintered ferrites in many applications.

L'invention concerne des matériaux magnétiques de terres rares à base de Fe qui sont fabriqués lors d'un processus de solidification rapide et qui présentent de bonnes propriétés magnétiques ainsi qu'une bonne stabilité thermique. De manière spécifique, l'invention concerne des matériaux magnétiques isotropiques de type Nd-Fe-B fabriqués lors d'un processus de solidification rapide à vitesse de roue optimale et à fenêtre de vitesse de roue optimale plus large que celle utilisée dans la production classique de matériaux classiques. Les matériaux présentent des valeurs de rémanence (B¿r?) et de coercivité intrinsèque (H¿ci?) comprises entre 7 et 8,5 kG et entre 6,5 et 9,9 kOe, respectivement, à température ambiante. L'invention concerne également un procédé pour fabriquer des matériaux ainsi que des aimants liés, fabriqués dans des matériaux magnétiques, qui conviennent pour un remplacement direct des ferrites frittées anisotropiques dans diverses applications.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Highly quenchable fe-based rare earth materials for ferrite... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Highly quenchable fe-based rare earth materials for ferrite..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Highly quenchable fe-based rare earth materials for ferrite... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1831933

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.