Metal treatment – Process of modifying or maintaining internal physical... – Magnetic materials
Patent
1988-09-19
1990-05-01
Sheehan, John P.
Metal treatment
Process of modifying or maintaining internal physical...
Magnetic materials
148104, 148120, 419 12, 419 23, H01F 102
Patent
active
049215515
ABSTRACT:
A method is disclosed of hot working a magnetically soft cast crystalline material containing grains of RE.sub.2 TM.sub.14 B and an RE metal, rich intergranular second phase into anisotropic permanent magnet bodies.
REFERENCES:
patent: 2689398 (1954-09-01), Gaut et al.
patent: 4597938 (1986-07-01), Matsuura et al.
patent: 4601875 (1986-07-01), Yamamoto et al.
Stadelmaier et al., "The Metallurgy of the Iron-Neodymium-Boron Permanent Magnet System", Materials Letters, vol. 2, No. 5A, Jun. 1984, pp. 411-415.
Lee, "Hot Pressed Neodymium-Iron-Boron Magnets", Appl. Phys. Lett., 46(8), Apr. 15, 1985, pp. 790-791.
Lee Robert W.
Vernia Peter
General Motors Corporation
Harasek Elizabeth F.
Sheehan John P.
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