Dipolar Interaction between the Soft and Hard Magnetic Particlesin a Two-Phase-Magnet of Their Mixture
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摘要: 從磁性粒子的靜磁場出發,分析計算了由軟、硬磁性兩相粒子隨機混合的雙相磁體中的靜磁作用。計算得出:取向的硬磁粒子施加于磁體中軟磁相上的靜磁場,在磁化方向上的分量為1個正值,它正比于硬磁相的體積分數及其飽和磁化強度,其作用將提高軟磁相的矯頑力。Abstract: The dipolar interaction in a mixed two-phase magnet of soft and hard magnetic particles was analysed. It was deduced that the aligned hard magnetic particles exert a positive average magnetic field on the soft magnetic particles, which enhances the coercive force of the soft magnetic phase. This average field along the magnetization direc-tion of the hard magnetic phase is proportional to the volume fraction of the hard phase in the magnet and its saturation magnetization.
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Key words:
- two-phase magnet /
- dipolar interaction /
- coercive force /
- magnetic materials
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