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主要研究了d-HDDR工艺及添加合金元素Co对Nd12.5Fe80.4-xCoxGa0.5Zr0.1B6.5(x=0、4、8、12、15)合金磁性能的影响规律.结果表明,氢压是HDDR磁粉吸氢歧化产生磁各向异性的重要敏感因素,0.025MPa的歧化氢压对提高磁粉的各向异性具有最好的效果,磁能积达到:Br=1.252T,jHc=768.7kA/m,(BH)max=253.4kJ/m3,DOA=0.58.(合金元素Co的添加有益于HDDR磁粉磁性能改善,在0~15%(原子分数),随着Co含量增加d-HDDR磁粉的磁能积逐渐增大.

参考文献

[1] Takeshita T;Morimoto K .[J].Applied Physics,1996,79:5040.
[2] Morimoto K.;Nakayama R. .Anisotropic Nd/sub 2/Fe/sub 14/B-based magnet powder with high remanence produced by modified HDDR process[J].IEEE Transactions on Magnetics,1999(5):3253-3255.
[3] Tomida T.;Hanafusa K.;Tomizawa H.;Hirosawa S.;Sano N. .Intermediate hydrogenation phase in the hydrogenation-disproportionation-desorption-recombination process of Nd2Fe14B-based anisotropic magnets[J].Acta materialia,1999(3):875-885.
[4] Nakamura N;Kato K;Book D et al.[J].IEEE Transactions on Magnetics,1999,35:3274.
[5] Igarashi K;Mori K;Morimoto K.[A].Japan:Sendai,2000:865.
[6] Sugimoto S;Koike N;Book D et al.[J].Journal of Alloys and Compounds,2002,330-332:892.
[7] Yang Ju;Zhou Shouzeng;Zhang Maocai et al.[J].Materials Letters,1991,12:242.
[8] Takeshita T;Nakayama T.[A].Japan:Kyota,1989:551.
[9] Nakamura H;Suefuji R;Sugimoto S et al.[J].Applied Physics,1994,76:6828.
[10] Mishima C;Hamada N;Mitarai H.[A].Japan:Institute of Metals,2000:873.
[11] Liu Xubo;Xiao Yaofu;Yue M.[A].Japan:Institute of Metals,2000:865.
[12] Honkura Y;Mishima C;Hamada N et al.[J].Journal of Magnetism and Magnetic Materials,2005,290-291:1282-1285.
[13] 周寿增;董清飞.超强永磁体-稀土铁系永磁材料[M].北京:冶金工业出版社,2004:564.
[14] 周寿增;董清飞.超强永磁体-稀土铁系永磁材料[M].北京:冶金工业出版社,2004:334-335.
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