| 摘要 |
Lamellar rare earth-iron-boron-based magnet alloy particles for a bonded magnet, having an intrinsic coercive force (iHc) of not less than 3.5 kOe, a residual magnetic flux density (Br) of not less than 9.5 kG, and a maximum energy product ((BH)max) of not less than 13 MGOe. These particles have an average major axial diameter of 60 to 500 mum, an average minor axial diameter of 50 to 460 mum, an average axis ratio (major axial diameter/minor axial diameter) of 1.1 to 10 and an average aspect ratio (major axial diameter/thickness) of 3 to 100. The magnet alloy particles have a residual magnetic flux density (Br) as high as not less than 10 kG, an intrinsic coercive force (iHc) as large as not less than 3.5 kOe and a maximum energy product ((BH)max) as large as not less than 13 MGOe, are used as a material for high-performance bonded magnets.
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