| 摘要 |
PURPOSE:To obtain a rare-earth permanent magnet in which an ideal Nd-Fe-B- based magnet texture is realzed and which obtains a high magnetic characteristic by a method wherein a phase which is generated in an R-rich-phase formation alloy is controlled. CONSTITUTION:In the method of manufacturing a rare-earth permanent magnet, a powder of an alloy 2 in which an area ratio occupied by one kind or more kinds out of R<2>T<2>2, R<2>T<2>3 and R<2>2T<2>7 (where R<2> represents one kind or more kinds of rare-earth elements and T<2> represents one kind or more kinds of transition metals) is at 90% or higher is added to and mixed with a powder of an alloy 1 which is composed mainly of an R<1>2T14B intermetallic compound (where R<1> represents one kind or more kinds of rare-earth elements including Y and T represents one kind or more kinds of transition metals), and this mixture is crushed fine so as to be formed into a shape and sintered. |
