Mixed particulate composition for preparing rare earth-iron-boro

Details Mixed particulate composition for preparing rare earth-iron-boro Mixed particulate composition for preparing rare earth-iron-boro

1987-05-11

1991-01-01

Sheehan, John P.

Specialized metallurgical processes, compositions for use therei

Compositions

Loose particulate mixture containing metal particles

75254, 148302, 420 83, 420121, B22F 100

Patent

active

049815130

ABSTRACT:
Permanent magnets are prepared by a method comprising mixing a particulate rare earth-iron-boron alloy with a particulate transition metal, aligning the magnetic domains of the mixture, compacting the aligned mixture to form a shape, and sintering the compacted shape.

REFERENCES:
patent: 4541877 (1985-09-01), Stadelmaier et al.
patent: 4747874 (1983-05-01), Ghandehari
A. L. Robinson, "Powerful New Magnet Material Found", Science, vol. 223, pp. 920-922 (1984).
M. Sagawa, S. Fugimura, N. Togawa, H. Yamamoto, and Y. Matsuura, "New Material for Permanent Magnets on a Base of Nd and Fe", Journal of Applied Physics, vol. 55, pp. 2083-2087 (1984).
M. Sagawa, S. Fujimura, H. Yamamoto, Y. Matsuura, and K. Hiraga, "Permanent Magnet Materials Based on the Rare Earth-Iron-Boron Tetragonal Compounds", IEEE Transactions on Magnetics, vol. Mag-20, pp. 1584-1589 (Sep. 1984).
S. Hirosawa, Y. Matsuura, H. Yamamoto, S. Fujimura, and M. Sagawa, "Magnetization and Magnetic Anisotropy of R.sub.2 FE.sub.14 B Measured on Single Crystals", Journal of Applied Physics, vol. 59, pp. 873-879 (1986).

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