| Preparation of Rapidly Quenching （ Nd, Pr ） 12 （ FeCoZr ）82 B6 Alloy and Magnetic Properties of Bonded Magnets |
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| 引用本文： | 查五生,刘颖,高升吉,涂铭旌.Preparation of Rapidly Quenching （ Nd, Pr ） 12 （ FeCoZr ）82 B6 Alloy and Magnetic Properties of Bonded Magnets[J].中国稀土学报(英文版),2004,22(4):497-500. |
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| 作者姓名： | 查五生 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： | TheanisotropyfieldHAofPr2 Fe14 Bisabout 30 %higherthanthatofNd2 Fe14 Bwhichresultsinhighin trinsiccoercivityfornanocrystallineexchangecoupledcompositepermanentmagnets .SothePr basedisotropicbondedmagnetshavecurrentlyattractedmuchattentions1～ 4 ] .Howeverthistypeofpermanentmagnethasnotbeenusedinpractice .Thereexistmagneticinteractionsbetweenadja centgrainseitherinnanocrystallinecompositemagnetsorinanassemblyofsinglehardmagneticphaseofrareearth transitionmetalintermetalliccompounds5～ 8] …
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| 关 键 词： | 金属元素 永磁体 稀土元素 熔体纺丝 各向异性 （Nd Pr）12（FeCoZr）82B6 |
Preparation of Rapidly Quenching (Nd,Pr)12(FeCoZr)82B6 Alloy and Magnetic Properties of Bonded Magnets |
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| Zha Wusheng.Preparation of Rapidly Quenching (Nd,Pr)12(FeCoZr)82B6 Alloy and Magnetic Properties of Bonded Magnets[J].Journal of Rare Earths,2004,22(4):497-500. |
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| Authors: | Zha Wusheng |
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| Affiliation: | Zha Wusheng ~ |
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| Abstract: | The optimum quenching rates and annealing conditions to prepare near stoichiometrical (Nd,Pr)12(FeCoZr)82B6 bonded magnets were investigated by using sub-overquenching and post annealing method. The quenching rates, annealing temperatures, and annealing time directly influence the microstructure and magnetic properties of alloy ribbons. The optimum magnetic properties of bonded magnets are achieved by melt spinning at 24 m*s-1 wheel surface speed, annealing at 655 ℃ for 10 min, and bonding with 3.25% (mass fraction) epoxy. The best magnetic properties of remanence Br, intrinsic coercivity Hci and maximum energy product (BH)max are 0.669 T, 811 kA·m-1, and 75 kJ·m-3, respectively. |
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| Keywords: | metal materials permanent magnet Pr-based bonded magnets melt spinning magnetic properties rare earths |
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