用低温烧结法制备NiCoCuZn尖晶石铁氧体,并研究了不同复合添加剂(Bi_2O_3-V_2O_5, Bi_2O_3-PbO)对其磁导率色散行为的影响.结果表明:在Bi_2O_3-V_2O_5复合掺杂时,晶粒尺寸随Bi_2O_3含量的增大而增大.微观结构的变化导致了材料初始磁导率和截止频率的变化.磁导率的色散机制主要以畴壁位移为主.然而在Bi_2O_3-PbO复合掺杂下,晶粒尺寸随Bi_2O_3含量的减小而增大,材料的初始磁导率较Bi_2O_3-V_2O_5复合掺杂更小,截止频率更高.
NiCoCuZn spinel ferrites were prepared by a low-temperature sintering procedure with adding different composite additives, Bi_2O_3-V_2O_5 and Bi_2O_3-PbO. The effect of different composite additives on their magnetic permeability dispersion behaviors was investigated. Results show that for the samples with Bi_2O_3-V_2O_5 additive, the grain size increases with increasing of the Bi_2O_3 content in the composite additive. The microstructure change results in variations of initial magnetic permeability values and cutoff frequencies. Their permeability dispersion behaviors are ascribed to the domain wall movement mechanism. However, for the samples with Bi_2O_3-PbO additive, the grain size decreases with increasing of the Bi2O3 content in the composite additive. Compared with samples with Bi2O3-V2O5 additive, their initial magnetic permeability values are smaller, but the cutoff frequencies are higher.
参考文献
| [1] | 任利,张怀武,苏桦.NiZn软磁铁氧体材料的性能与应用[J].磁性材料及器件,2005(04):38-40. |
| [2] | 何新华,熊茂仁,凌志远,丘其春.多层片式电感器用 NiCuZn铁氧体的低温烧结[J].无机材料学报,1999(01):71-77. |
| [3] | 赵特技,袁阳,张伟,张怀武.基于低温共烧陶瓷（LTCC）技术的抗EMI滤波器设计[J].磁性材料及器件,2007(01):55-58. |
| [4] | 何水校.低温共烧铁氧体无源集成技术及其应用[J].磁性材料及器件,2003(05):29-32. |
| [5] | 韩志全.叠层片式电感及低温烧结铁氧体的研发进展[J].磁性材料及器件,2004(06):6-10. |
| [6] | Hanuszkiewicz J;Holz D;Eleftheriou E et al.[J].Journal of Applied Physics,2008,103:1039071. |
| [7] | Nakamura T. .LOW-TEMPERATURE SINTERING OF NI-ZN-CU FERRITE AND ITS PERMEABILITY SPECTRA[J].Journal of Magnetism and Magnetic Materials,1997(3):285-291. |
| [8] | Wang Sea-Fue;Wang Yuh-Ruey;Thomas C K Yang et al.[J].Journal of Magnetism and Magnetic Materials,2000,220:129. |
| [9] | Richard Lebourgeois;Sonia Duguey;Jean-Pierre Ganne et al.[J].Journal of Magnetism and Magnetic Materials,2007,312(02):328. |
| [10] | Wang Sea-Fue;Wang Yuh-Ruey;Thomas C K Yang et al.[J].Journal of Magnetism and Magnetic Materials,2000,217:35. |
| [11] | Han Mangui;Liang Difei;Deng Longjiang .[J].Applied Physics Letters,2007,90:192507. |
| [12] | Jia Lijun;Zhang Huaiwu;Liu Yingli et al.[J].Journal of Magnetism and Magnetic Materials,2007,316(01):67. |
| [13] | Seo S.H.;Oh J.H. .Effect of MoO/sub 3/ addition on sintering behaviors and magnetic properties of NiCuZn ferrite for multilayer chip inductor[J].IEEE Transactions on Magnetics,1999(5):3412-3414. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%