| 摘要 |
A rare earth alloy for producing permanent magnet comprised of: 15-65 atomic % R1, 35-83 atomic % Fe, and 0-15 atomic % B, where R1 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 correspoding 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 R1 is substituted for part of R (R representing lanthanide and/or Y) having a high performance are produced with a reduced cost.
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