Rare earth alloy powder used in production of permanent magnets

Details Rare earth alloy powder used in production of permanent magnets Rare earth alloy powder used in production of permanent magnets

1988-01-20

1990-02-06

Rutledge, L. Dewayne

Specialized metallurgical processes, compositions for use therei

Compositions

Loose particulate mixture containing metal particles

420 83, 420121, 420416, 148302, B22F 100

Patent

active

048986135

ABSTRACT:
A rare earth alloy for producing permanent magnet comprised of: 15-65 atomic % R.sub.1, 35-83 atomic % Fe, and 0-15 atomic % B, where R.sub.1 represents at least one of heavy rare earth elements Gd, Tb, Dy, Ho, Er, Tm and Yb. This alloy is produced by reducing a mixture of corresponding rare earth oxides, Fe, and a boron containing material by Ca, contacting the reduced mass with water, and treating the resultant slurry with water. Using this alloy, Fe-B-R base magnets wherein R.sub.1 is substituted for part of R (R representing lanthanide and/or Y) having a high performance are produced with a reduced cost.

REFERENCES:
patent: 4769063 (1988-09-01), Ishigani et al.
patent: 4770723 (1985-09-01), Sagawa et al.
Chaban, N. F., et al., "(Nd, Sm, Gd)-Fe-B Ternary Systems)" Dopov. Akad. Nauk, UKRSR, Ser. A, No. 10, pp. 873-876, 1979.

Affiliated with

Also associated with

Rating

Rare earth alloy powder used in production of permanent magnets does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Rare earth alloy powder used in production of permanent magnets, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rare earth alloy powder used in production of permanent magnets will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-440163