| Magnetic properties of Nd_2Fe_(14)B/α-Fe nanocomposite magnets with yttrium addition |
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| 引用本文： | CHEN Zhi’ana,SUI Yanlib,, GUO Zhimenga a Institute of Powder Metallurgy,University of Science , Technology Beijing,Beijing ,China b State Key Laboratory for Advanced Metals , Materials,China.Magnetic properties of Nd_2Fe_(14)B/α-Fe nanocomposite magnets with yttrium addition[J].稀有金属(英文版),2010,29(3):265-269. |
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| 作者姓名： | CHEN Zhi’ana SUI Yanlib GUO Zhimenga a Institute of Powder Metallurgy University of Science Technology Beijing Beijing China b State Key Laboratory for Advanced Metals Materials China |
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| 作者单位： | CHEN Zhi'an,GUO Zhimeng(Institute of Powder Metallurgy, University of Science and Technology Beijing, Beijing 100083, China);SUI Yanli(State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, China) |
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| 摘 要： | The phase evolution and magnetic properties of Nd9?xYxFe72Ti2Zr2B15 (x = 0,0.5,1,and 2) melt-spun nanocomposite ribbons were studied.It is found that Y addition not only enhances the formability of amorphous phase in the alloy,but also stabilizes the amorphous phase during the annealing treatment.The appropriate content of Y addition effectively enhances the remanence (Jr) of the annealed sample.The residual amorphous intergranular phase in the annealed sample optimizes the squareness of the loop,resulting in an larger maximum energy product (BH)max.The best magnetic properties,Jr = 0.78 T,Hci (coercivity) = 923.4 kA/m,and (BH)max = 98.5 kJ/m3,were obtained from the Nd8YFe72Ti2Zr2B15 ribbon spun at Vs = 4 m/s and annealed at 700°C for 10 min,which is composed of Nd2Fe14B,α-Fe,and amorphous phase.
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| 关 键 词： | Nd2Fe14B/α-Fe 纳米复合材料 磁性能 磁体 复相 最大磁能积 非晶相 非晶合金 |
| 收稿时间： | 27 February 2007 |
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