| Nanocrystalline Nd2Fe14B／α—Fe permanent magnet |
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| 引用本文： | 倪建森,徐晖,朱明原,李强,周邦新,董远达. Nanocrystalline Nd2Fe14B／α—Fe permanent magnet[J]. 中国有色金属学会会刊, 2002, 12(4): 723-725 |
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| 作者姓名： | 倪建森 徐晖 朱明原 李强 周邦新 董远达 |
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| 作者单位： | InstituteofMaterialsScienceandEngineering,ShanghaiUniversity,Shanghai200072,China |
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| 摘 要： | Nd8.5Fe75Co5Cu1Zr3Nb1B6.5bonded magnet was prepared by melt-spinning(vs=18m/s)and subsequent heat treatment(670℃，4min).Excellent magnetic properties of the bonded magnet were achieved:Br=0.68T,iHc=620.3kA/m,(BH)max=74kJ/m^3.The addition of Cu and Zr elements shows to be advantageous in improving an intrinsic coercivity and squareness of hysteresis loop,as well as energy product.In has a remarkable remanence enhancement and the isotropic saturation remanence ratio Mr/Ms is 0.83.
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| 关 键 词： | Nd睩e B permanent magnet nanocrystalline grain size |
Nanocrystalline Nd2Fe14B/α-Fe permanent magnet |
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| Abstract: | Nd8.5Fe75Co5Cu1Zr3Nb 1B6.5 bonded magnet was prepared by melt-spinning (vs=18 m/s) and subsequent heat treatment (670 ℃, 4 min). Excellent magnetic properties of the bonded magnet were achieved: Br=0.68T, iHc=620.3 kA /m, (BH)max=74 kJ/m3. The addition of Cu and Zr elementss hows to bead vantageous in improving an intrinsic coercivity and squareness of hysteresis loop, as well as energy product. It has a remarkable remanence enhancement and the isotropic saturation remanence ratio Mr/Ms is 0.83. |
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| Keywords: | Nd-Fe-B permanent magnet nanocrystalline grain size |
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