Permanent magnet alloy

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PROBLEM TO BE SOLVED : To obtain a rare-earth magnet alloy which is an R-Fe-Co-B-(C) based rare-earth magnet alloy and can maintain high coercive force and maximum energy product even if the amount of expensive Co is reduced. SOLUTION : The permanent magnet alloy has a composition consisting of, by atomic percent (at.%), 8 to 20% R (where R represents at least one element selected from the group consisting of Nd, Pr, Ce, La, Y, Gd, Tb, Ho, Er, and Tm), ≤2.0% (not including 0%) Dy, COPYRIGHT : (C)2004, JPO