| 摘要 |
<p>A bonded magnet which comprises a R1FeB based rough powder surface-coated with a surfactant having a specific average particle diameter and a specific compounding ratio, a R2Fe(N,B) based fine powder surface-coated with a surfactant, wherein R1 and R2 are each a rare earth element, and a resin as a binder. In the bonded magnet, the R1FeB based rough powder is surrounded by the resin having the R2Fe(N,B) based fine powder dispersed uniformly therein, which results in the prevention of the deterioration and the like of the R1FeB based rough powder, due to the cushioning effect of the R2Fe(N,B) based fine powder and the resin, which leads in turn to the exhibition of the excellent magnetic characteristics being inherent in a R1FeB based rough powder, and thus has lead to the provision of a bonded magnet excellent in magnetic characteristics and a permanent magnetism reduction property.</p> |
