研究了Fe76-xC7.0Si3.3B5.0P8.7Cux(x=0、0.3％或0.7％(原子分数))非晶合金中Cu的添加及纳米晶的形成对其软磁性能的影响,对合金的微观结构进行了X射线衍射实验和高分辨透射电镜观察,对合金的热稳定性和晶化激活能进行了测量和分析.结果表明,该合金退火之后的饱和磁化强度与合金中α-Fe纳米晶粒的密度和大小密切相关.Cu的添加可以影响合金的非晶形成能力、热稳定性和晶化激活能,添加少量的Cu(少于0.3％(原子分数))可以有效地提高合金的非晶形成能力,抑制退火过程中α-Fe纳米晶粒的析出,增强合金的热稳定性,而当Cu的添加量达到0.7％(原子分数)时可以降低合金的晶化激活能,促进α-Fe纳米晶粒的形核,提高α-Fe纳米晶粒的密度,使合金的饱和磁化强度达到1.79T.
参考文献
| [1] | Yoshizawa Y et al.New Fe-based soft magnetic alloys composed of ultrafine grain structure[J].Journal of Applied Physics,1988,64:6044-6046. |
| [2] | Suzuki K et al.Soft magnetic properties of nanocrystalline bcc Fe-Zr-B and Fe-M-B-Cu (M =transition metal) alloys with high saturation magnetization[J].Journal of Applied Physics,1991,70:6232-6237. |
| [3] | Akihiro Makino;Akihisa Inoue .Soft Magnetic Properties of Fe-Based Bulk Amorphous Alloys[J].Materials transactions,2000(11):1471-1477. |
| [4] | 尹镭,朱正吼,刘吉磊,胡琴.非晶合金变压器铁芯制备及性能研究[J].功能材料,2012(14):1899-1902. |
| [5] | 唐坚,连法增,于敏,凌子坚.非晶Fe78Si9B13磁粉芯的制备及性能研究[J].功能材料,2012(01):96-98. |
| [6] | Ohta M et al.Magnetic properties of nanocrystalline Fe82.62Cu1.32SixB16-x alloys (x =0-7)[J].Applied Physics Letters,2007,91:062517. |
| [7] | KongF;etal .HighBsFe64-xSi4B8P4Cux(x=0-1.5) nanocrystalline alloys with excellent magnetic softness[J].Journal of Applied Physics,2011,109:07A303. |
| [8] | Fan X et al.Fe-based nanocrystalline FeBCCu soft magnetic alloys with high magnetic flux density[J].Journal of Applied Physics,2011,109:07A314. |
| [9] | Schwarz RB;Shen TD;Harms U;Lillo T .Soft ferromagnetism in amorphous and nanocrystalline alloys[J].Journal of Magnetism and Magnetic Materials,2004(2/3):223-230. |
| [10] | T. S. Chin;C. Y. Lin;M. C. Lee;R. T. Huang;S. M. Huang .Bulk nano-crystalline alloys[J].Materials Today,2009(1/2):34-39. |
| [11] | 郭金花,倪晓俊,连法增,薄希辉,李德仁,卢志超.合金元素对非晶形成能力及力学性能的影响[J].功能材料,2007(10):1648-1651. |
| [12] | H.X. Li;Z.B. Jiao;J.E. Gao;Z.P. Lu .Synthesis of bulk glassy Fe–C–Si–B–P–Ga alloys with high glass-forming ability and good soft-magnetic properties[J].Intermetallics,2010(10):1821-1825. |
| [13] | A. Makino;T. Kubota;M. Makabe;C.T. Chang;A. Inoue .FeSiBP metallic glasses with high glass-forming ability and excellent magnetic properties[J].Materials Science & Engineering, B. Solid-State Materials for Advanced Technology,2008(1/3):166-170. |
| [14] | Akira Takeuchi;Akihisa Inoue .Classification of Bulk Metallic Glasses by Atomic Size Difference, Heat of Mixing and Period of Constituent Elements and Its Application to Characterization of the Main Alloying Element (Overview)[J].Materials transactions,2005(12):2817-2829. |
| [15] | Gao J E et al.Effects of nanocrystal formation on the soft magnetic properties of Fe-based bulk metallic glasses[J].Applied Physics Letters,2011,99:052504. |
| [16] | 李庆达,连法增,尤俊华,张莉莉,陆曹卫.水雾化Fe_（74）Cr_2Mo_2Sn_2P_（10）C_2Si_4B_4非晶磁粉芯制备及性能研究[J].功能材料,2010(01):17-19,22. |
| [17] | Herzer G. .Grain structure and magnetism of nanocrystalline ferromagnets[J].IEEE Transactions on Magnetics,1989(5):3327-3329. |
| [18] | Kissinger H E .Reaction kinetics in differential thermal a nalysis[J].Analytical Chemistry,1957,29:1702-1706. |
| [19] | Hono K.;Ohnuma M.;Onodera H.;Ping DH. .Cu clustering and Si partitioning in the early crystallization stage of an Fe73.5Si13.5B9Nb3Cu1 amorphous alloy[J].Acta materialia,1999(3):997-1006. |
| [20] | J.D.Ayers;V.G.Harris;J.A.Sprague .On the formation of nanocrystals in the soft magnetic alloy Fe_73.5 Nb_3 Cu_1Si_13.5B_9[J].Acta materialia,1998(6):1861-1874. |
| [21] | Hu Y et al.The effect of crystallization on microstructure and magnetic properties of Fe6i Co7Zr9.5 Mo5W2B15.5 bulk metallic glass[J].Materials Letters,2006,60:1080-1084. |
| [22] | Herzer G .Nanocrystalline soft magnetic materials[J].Physical Scripta,1993,T49:307-314. |
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