用高能球磨的方法制备铁基纳米晶铁钴和铁镍合金,研究材料的结构与频率特性.结果表明:具有体心立方晶体结构样品的颗粒尺寸在0.5~5μm之间,尺寸分布较宽;而具有体心立方和面心立方混合晶体结构样品的在5~20μm之间,尺寸分布较窄.含钴样品的钴含量有提高样品截止频率的作用;样品的磁导率实部在掺杂量为7.69%(原子分数)时均出现极大值.Co掺杂的样品显示出弛豫型磁谱特征,而Ni掺杂样品则显示出共振型磁谱特征.Fe-Co样品在高频区域磁导率虚部随着掺杂量的增大而减小,同时随着掺杂量的增加,磁导率虚部最小值向高频区域移动.Fe-Ni样品的磁导率虚部最小值也随着掺杂量的增加向高频区域移动.纯铁样品则在高频区域磁导率虚部小于掺杂样品.
参考文献
| [1] | 居毅,李宗权.机械合金化的原理及在磁性材料研究中的应用[J].功能材料,2002(01):12-14,18. |
| [2] | TAGHVAEIA A H;SHOKROLLAHI H;JANGHORBANA K et al.Eddy current and total power loss separation in the iron-phosphate-polyepoxy soft magnetic composites[J].Materials & Design,2009,30:3989-3995. |
| [3] | R. Hamzaoui;S. Guessasma;O. ElKedim .Analysis of structure and magnetic properties of nanocrystalline milled alloys[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,2008(1/2):29-37. |
| [4] | LINDEROTH S;PEDERSEN M S .Fe-Al2O3 nanocomposites prepared by high-energy ball milling[J].Journal of Applied Physics,1994,75:5867-5869. |
| [5] | Bahgat M;Paek MK;Park CH;Pak JJ .Thermal synthesis of nanocrystalline (CoxNi1-x)(y)Fe1-y KOVAR alloy through gaseous reduction of mixed oxides[J].Materials transactions,2008(1):208-214. |
| [6] | 诸葛兰剑,郭治天,吴雪梅,汤乃云,叶春暖,姚伟国.球磨诱发α-Fe粉与间苯二胺混合物的固相反应[J].材料研究学报,2002(01):109-112. |
| [7] | R. Bensalem;W. Tebib;S. Alleg .Magnetic properties of nanostructured Fe_(92)P_8 powder mixture[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,2009(1/2):24-27. |
| [8] | MURAYAMA M;HOWE J;HIDAKA H et al.Atomic-Level observation of disclination dipoles in mechanically milled nanocrystalline Fe[J].Science,2002,295:2433-2435. |
| [9] | SHABANOVA I N;TEREBOVA N S .Electronic structure of Fe+X alloys (X = Si,Ge,Co)[J].Journal of Structural Chemistry,2000,41:954-958. |
| [10] | John B. Goodenough .Summary of Losses in Magnetic Materials[J].IEEE Transactions on Magnetics,2002(5):3398-3408. |
| [11] | 李国栋.当代磁学[M].合肥:中国科学技术大学出版社,1999 |
| [12] | Zhu LH.;Zhao L.;Ma XM. .Study on phase transformation of Fe-Ni powders during mechanical alloying[J].Journal of Materials Science,2001(23):5571-5574. |
| [13] | JEN S U;LIOU S S .Spin-disorder resistivity in Fe-Ni and Mn-Ni alloys[J].Journal of Applied Physics,1999,85:8217-8222. |
| [14] | 都有为.纳米磁性材料及其应用[J].材料导报,2001(07):6-8. |
| [15] | Herzer G. .Grain size dependence of coercivity and permeability in nanocrystalline ferromagnets[J].IEEE Transactions on Magnetics,1990(5):1397-1402. |
| [16] | CHICINAS I .Soft magnetic nanocrystalline powders produced by mechanical alloying routes[J].J Opoelectron Adv Mater,2006,8:439-448. |
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：
-
10%
-
20%
-
30%
-
40%
-
50%