| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a permanent magnet that previously reduces the amount of carbon that magnet particles contain before sintering even when wet pulverization is employed, and a method of manufacturing the permanent magnet. <P>SOLUTION: Roughly pulverized magnet powder is pulverized by a bead mill in a solvent together with an organic metallic compound corresponding to M-(OR)<SB POS="POST">x</SB>(where M is V, Mo, Zr, Ta, Ti, W or Nb, R is a substituent comprising carbon hydride and may be either a straight chain or a branch, and (x) is an arbitrary integer), and the organic metallic compound is stuck uniformly on magnet particle surfaces. Then a powder compaction molded molding is held in a hydrogen atmosphere at 200 to 900°C for several hours to be subjected to in-hydrogen calcination treatment. Then the sintering is carried out to manufacture the permanent magnet 1. <P>COPYRIGHT: (C)2012,JPO&INPIT |
