RARE EARTH MAGNETIC POWDER, PERMANENT MAGNET THEREOF, AND MANUFACTURE OF THEM

摘要

PURPOSE:To provide magnetic powder and permanent magnets which are improved in magnetic characteristics taking advantage of magnetic interaction. CONSTITUTION:Mixed magnetic powder is composed of two or more kinds of magnetic powder which comprise magnetic powder A (remanent magnetic flux density BrA, coercive force HcA) and magnetic powder B (remanent magnetic flux density BrB, coercive force HcB), wherein magnetic powders A and B are so set in properties as to satisfy formulas, BrA>BrB and HcA