Metal treatment – Process of modifying or maintaining internal physical... – Magnetic materials
Patent
1988-04-04
1989-11-07
Dean, Richard O.
Metal treatment
Process of modifying or maintaining internal physical...
Magnetic materials
148105, H01F 109
Patent
active
048789585
ABSTRACT:
Permanent magnets are prepared by a method comprising mixing a particulate rare earth-iron-boron alloy with particulate aluminum, aligning the magnetic domains of the mixture, compacting the align mixture to form a shape, and sintering the compacted shape.
REFERENCES:
patent: 4601875 (1986-07-01), Yamamoto et al.
patent: 4762574 (1988-08-01), Ghandehari
patent: 4770723 (1988-09-01), Sagawa et al.
A. L. Robinson, "Powerful New Magnet Material Found," Science, vol. 223, pp. 920-922 (1984).
M. Sagawa, S. Fujimura, 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, Sep. 1984, pp. 1584-1589.
C. Herget, "Metallurgical Ways to NdFeB Alloys. Permanent Magnets from Co-Reduced NdFeB," presented at the 8th International Workshop on Rare-Earth Magnets and their Applications, Dayton, Ohio, May 6-8, 1985.
Dean Richard O.
Thompson Alan H.
Union Oil Company of California
Wirzbicki Gregory F.
Wyszomierski George
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