| Effect of Zirconium Content on Microstructure and Magnetic Properties of Nanocomposite Bonded Magnets |
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| 作者姓名： | 连利仙 刘颖 高升吉 涂铭旌 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | Five kinds of bonded magnets with compositions of Nd10.5Fe78.4-xCo5ZrxB6.1(atom percentage x＝0,1.0,1.5,2.0,2.5)were prepared by rapid quenching, post heat treatment and mould-pressing.The microstructure and crystallization behavior were studied by X-ray diffraction (XRD), differential thermal analysis (DTA) and atomic force microscopy (AFM). The results suggest that high content of Zr can increase the glass formation ability (GFA) of alloys. When the content of Zr is controlled at a certain level, Fe2Zr with high melting point is formed in the alloys, and grain size is reduced consequently. At the same time, because of Zr addition, the coercivity and squareness of demagnetization loop are obviously improved, and the energy product is accordingly increased. As a result, optimal magnetic properties of Nd10.5Fe78.4-xCo5ZrxB6.1(Br＝0.659 T,Hcj＝628 kA·m-1,Hcb＝419 kA·m-1,(BH)m=73 kJ·m-3) are obtained when x=2.
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| 关 键 词： | 锆 微结构 磁性 纳米复合永磁体 稀土元素 金属材料 |
Effect of Zirconium Content on Microstructure and Magnetic Properties of Nanocomposite Bonded Magnets |
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| Lian Lixian,Liu Ying,Gao Shengji,Tu Mingjing.Effect of Zirconium Content on Microstructure and Magnetic Properties of Nanocomposite Bonded Magnets[J].Journal of Rare Earths,2005,23(2):203-207. |
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| Authors: | Lian Lixian Liu Ying Gao Shengji Tu Mingjing |
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| Abstract: | |
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| Keywords: | metal materials Zirconium nanocomposite magnets microstructure magnetic properties rare earths |
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