| 简介 |
A ferrite magnetic powder for bond magnet that experiences only small decrease in coercivity when molded into a bond magnet is provided, which is a ferrite magnetic powder that includes an alkali-earth metal constituent and exhibits a decrease in coercivity of not greater than 600 Oe when subjected to a prescribed molding test. The magnetic powder can be obtained by mixing a fine ferrite powder of an average particle diameter of greater than 0.50 to 1.0 µm and a coarse ferrite powder of an average particle diameter of greater than 2.50 to 5.0 µm at ratio to incorporate the fine powder at a content ratio of 15 - 40 wt%. |
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