The effect of the microstructure on the DC-bias superposition characteristic of NiCuZn ferrite

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• 作者：Shuoqing Yan ; Li Dong ; Zhongyan Chen ; Xian Wang ; Zekun Feng
• 关键词：NiCuZn ferrite ; DC-bias superposition characteristic ; Composite addition
• 刊名：Journal of Magnetism and Magnetic Materials
• 出版年：March, 2014
• 年：2014
• 卷：353
• 期：Complete
• 页码：47-50
• 全文大小：817 K

文摘

The effects of combinational additive on the DC-bias superposition characteristic of NiCuZn ferrite were investigated experimentally. The composite NiCuZn ferrite was prepared by a conventional ceramic method. The sharp decrease of the permeability can be avoided when the magnetic field is small. It is because the permeability is mainly attributed to the with fine grain size. Owing to the thicker nonmagnetic grain boundary, samples with good DC-bias superposition characteristic can be obtained by special combinational additions. Composite addition of Bi₂O₃, AlBSi glass, and SnO₂ can both retard the grain growth and increase the thickness of the nonmagnetic grain boundary 未. Finally, an excellent performance sample was obtained.