介绍了利用球磨后的FeCuNbSiB合金粉末冷压制作纳米晶复合磁粉芯的工艺.探讨了粉末粒度为80～200目,绝缘剂量为1%～8%时纳米晶复合磁粉芯的频率特性,直流叠加特性及品质因数Q.制备出的平均粒度为80目的磁粉芯有效磁导率μe在1MHz范围内恒为85,在100kHz时其峰值Q为65,在f=50kHz,Bm=50mT测试条件下其损耗为102mW/cm3.其功率损耗比传统铁粉芯,Fe-Ni粉芯小.
参考文献
| [1] | Yoshizawa Y;Oguma S;Yamauchki K .[J].Journal of Applied Physics,1988,64(10):6044-6066. |
| [2] | Muller M;Novy A;Brunner M et al.[J].Journal of Magnetism and Magnetic Materials,1999,196-197:357-358. |
| [3] | Iqbal Y.;Davies HA.;Gibbs MRJ.;Woodcock TR.;Todd I.;Major RV. .Nanocrystalline powder cores for high frequency applications[J].Journal of Magnetism and Magnetic Materials,2002(1):282-284. |
| [4] | Alves F;Ramiarinjaona C;Berenguer B .[Z].,2002. |
| [5] | 张甫飞,纪朝廉,张洛,李挹红.铁基纳米晶合金粉末及磁粉芯研究[J].上海钢研,2003(01):15-19. |
| [6] | Choi G B;Kim D H;Kim G H et al.[J].Physica Status Solidi,2004,201(08):1866-1870. |
| [7] | Kim GH.;Noh TH.;Choi GB.;Kim KY. .Magnetic properties of FeCuNbSiB nanocrystalline alloy powder cores using ball-milled powder[J].Journal of Applied Physics,2003(10 Pt.2):7211-7213. |
| [8] | 张虹,白书欣,韩晓静,赵恂,谢凯,夏立芳,雷廷权,许根生,舒阳会.粘结NdFeB磁体用偶联剂[J].磁性材料及器件,2001(02):9-12. |
| [9] | 过壁君;冯则坤;邓龙江.磁性薄膜与磁性粉体[M].成都:电子科技大学出版社,1994 |
| [10] | 黄爱萍,谭福清,冯则坤,聂建华,何华辉.Mn-Zn铁氧体材料磁导率直流叠加特性研究[J].磁性材料及器件,2004(03):29-31. |
| [11] | The Arnold Engineering Company.电感器磁芯材料性能比较表[M].Marengo,Illinois,USA,1998 |
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