Permanent magnet material containing a rare-earth element,...

Details Permanent magnet material containing a rare-earth element,... Permanent magnet material containing a rare-earth element,...

H - Electricity

01

F

H01F 1/053 (2006.01) H01F 1/059 (2006.01) H01F 41/00 (2006.01)

Patent

CA 2142337

Magnetic materials containing a rare earth metal, and iron or a similar metal, as well as nitrogen and carbon, are produced by gas absorbing nitrogen and carbon sequentially into a parent intermetallic compound; the resulting magnetic materials have high Tc, µoM5 and µoHA, are essentially free of .alpha.-Fe, and have a coercivity at 300° K of at least 1.5 T. Anisotropic magnetic materials are produced by pretreating the intermetallic compound, which contains carbon, by powder sintering or oriented hot shaping, followed by nitriding and/or carbiding.

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