| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a rare earth permanent magnet having superior coercive force and residual magnetic flux density. <P>SOLUTION: The rare earth permanent magnet, having high magnetic characteristics by making 20-40 wt.% rare earth element, 0.5-4.5 wt.% boron, 0.03-0.5 wt.% M (one kind or more than two kinds among Al, Cu and Ga), 0.01-0.2 wt.% Bi, and the balance of a transition metal element T can be obtained. <P>COPYRIGHT: (C)2003,JPO |
