| 摘要 |
PURPOSE:To provide a highly reliable R-TM-B permanent magnet having improved corrosion-proof property. CONSTITUTION:An Ni-plated layer having laminar texture is formed on the surface of the title R-TM-B permanent magnet consisting of R (R indicates one or a combination more than one kind of rare earth elements containing Y) of 5 to 40wt.%. TM (TM indicates a transition metal mainly composed of Fe, and a part of which may be replaced by other metal element or a non- metal element) of 50 to 90wt.%, and B (boron) of 0.2 to 8wt.%. |
