| 摘要 |
PROBLEM TO BE SOLVED: To provide a miniature size of magnet superior in a maximum energy product, coercive force, and corrosion resistance. SOLUTION: The Fe-Pt based magnet is characterized by employing an alloy which includes, by atomic ratio, 35-55% platinum, 0.001-10% the third element of at least one selected from elements in the groups of IVa, Va, IIIb, and IVb, and the balance iron with unavoidable impurities, and which has an average crystal grain size of 0.3 μm. In other words, the Fe-Pt based magnet with higher performance than the conventional one, is obtained by means of mixing a particular element with the Fe-Pt alloy in a predetermined proportion. |
