欢迎登录材料期刊网

材料期刊网

高级检索

采用快淬法制备了镨基(Nd,Pr)10.5-xDyxFe83.5B6 (x=0,1,2)系列粘结磁体,测定了快淬条带晶化转变温度,研究了添加Dy元素对快淬合金条带晶化转变温度的影响.合金中添加Dy元素,快淬态条带晶化过程中非晶态向晶态转变的开始温度及结束温度提高,转变的温度区间增大.由于热稳定性的提高,条带晶化退火需要采用较高的温度.添加2%Dy元素的(Nd,Pr)8.5Dy2Fe83.5B6合金,最佳退火温度比(Nd,Pr)9.5Dy1Fe83.5B6和(Nd,Pr) 10.5Fe83.5B6分别提高了15和30℃.添加Dy元素的粘结磁体,内禀矫顽力Hcj增加,但剩磁研下降,实验制备的(Nd,Pr)9.5Dy1Fe83.5B6合金磁体的磁性能为Br=0.638 T,Hcj=611 kA/m,(BH)m=71.6 kJ/m3.

参考文献

[1] Hirosawa S;Sagawa M;Yamamoto H et al.[J].Journal of Applied Physics,1986,59(03):873.
[2] Kneller E.F.;Hawig R. .The exchange-spring magnet: a new material principle for permanent magnets[J].IEEE Transactions on Magnetics,1991(4):3588-3560.
[3] Skomski R;Coey J M D .[J].Physical Review B,1993,48:15812.
[4] Wang ZC.;Li FB.;Zhou SZ.;Wang R.;Gong W.;Zhang MC. .HIGH-COERCIVITY (NDDY)(2)(FENB)(14)B-ALPHA-FE NANOCRYSTALLINE ALLOYS[J].Journal of Applied Physics,1997(8 Pt.2b):5097-5099.
[5] Arai A;Kato H;Akioka K .[J].IEEE Transactions on Magnetics,2001,37(04):2555.
[6] Zha Wusheng;Liu Ying;Gao Shengji et al.[J].Rare Metal Materials and Engineering(稀有金属材料与工程),2004,33(01):75.
[7] Marinescu M;Chiriac H;Grigoras M .[J].Journal of Magnetism and Magnetic Materials,2005,290-291:1267.
[8] Bao, XQ;Zhu, J;Gao, XX;Qiao, Y;Zhou, SZ .Exchange interactions and magnetization reversal of nanocrystalline (NdDyTb)(12.3)(FeZrNbCu)(81.7)B-6.0 ribbons with Co substitution[J].Journal of Magnetism and Magnetic Materials,2009(12):1832-1837.
[9] Liu Z W;Davies H A .[J].Journal of Magnetism and Magnetic Materials,2007,313:337.
[10] Zhang W.;Inoue A. .Crystallization and hard magnetic properties of Fe-Co-Nd-Dy-B amorphous alloys with glass transition[J].Journal of Applied Physics,2000(9 Pt.3):6122-6124.
[11] Liu Z W;Davies H A .[J].Journal of Magnetism and Magnetic Materials,2005,290-291:1230.
[12] Cook B A;Harringa J L;Laabs F C et al.[J].Journal of Magnetism and Magnetic Materials,2001,233:L136.
上一张 下一张
上一张 下一张
计量
  • 下载量()
  • 访问量()
文章评分
  • 您的评分:
  • 1
    0%
  • 2
    0%
  • 3
    0%
  • 4
    0%
  • 5
    0%