利用熔体快淬技术制备了(Nd11.4Fe82.9B5.7)0.99M1(其中M=Zr,Nb,Ga,Zr+Ga,Nb+Ga)快淬带.发现Ga元素的添加对Nd2Fe14B相晶粒的c轴垂直于带面取向是有利的.复合添加Zr+Ga或Nb+Ga可获得较好的磁性能,并且进一步提高了快淬带晶粒的择优取向.取向度随厚度改变发生明显的变化,当带厚约为120μm时取向度最高.热处理可使淬带织构度增加,但导致晶粒粗化.利用深冷技术对纳米晶复合快淬带进行超低温处理.发现深冷处理有利于快淬带织构度的增强,且晶粒尺寸几乎不变.
参考文献
| [1] | 沈保根,张宏伟,张文勇,阎阿儒.纳米晶稀土永磁材料的制备和磁性[J].中国稀土学报,2004(01):28-33. |
| [2] | Coehoorn R;De Mooij D B;De Waard C .Meltspun permanent magnet materials containing Fe3B as the main phase[J].Journal of Magnetism and Magnetic Materials,1989,80:101. |
| [3] | 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. |
| [4] | Dadon D;Gefen Y;Dariel M P .The texture of melt spun Fe76Nd16B8 ribbons[J].IEEE Transactions on Magnetics,1987,23:3605. |
| [5] | 姜忠良,陈秀云,白飞明,马春来,朱静.Texture of Nanocomposite Nd2Fe14B/α-Fe Melt Spun Ribbons[J].稀土学报(英文版),2004(02):227-231. |
| [6] | Skomski R;Coey J M D .Giant energy product in nanostructured two-phase magnets[J].Physical Review B,1993,48:15812. |
| [7] | Kim Y B;Kim C S;Kim D H et al.Nanocrystalline Nd12Fe80B6Nb1Ga1 melt-spun ribbon with textured surface[J].Journal of Applied Physics,1994,75:4756. |
| [8] | CHEN Z M;Zhang Y;Ding Y Q et al.Studies on magnetic properties and microstructure of melt-spun nanocomposite R8(Fe,Co,Nb)86B6 (R = Nd,Pr) magnets[J].Journal of Magnetism and Magnetic Materials,1999,195:420. |
| [9] | Yamasaki J.;Furuta A. .Anisotropic Nd-Fe-B melt-spun magnets[J].IEEE Transactions on Magnetics,1989(5):4120-4122. |
| [10] | 陈鼎,黎文献.深冷处理下铝和铝合金的晶粒转动[J].中南工业大学学报(自然科学版),2000(06):544-547. |
| [11] | 丛吉远,董恩源,王毅,王秀敏.深冷处理对CuCr真空触头材料组织及性能的影响[J].高压电器,2000(02):15-17. |
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