| 柠檬酸法合成的Ni-Zn铁氧体粉末的结构与电磁性能 |
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| 引用本文： | 胡昌吉,冯则坤,何华辉. 柠檬酸法合成的Ni-Zn铁氧体粉末的结构与电磁性能[J]. 磁性材料及器件, 2006, 37(5): 29-31 |
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| 作者姓名： | 胡昌吉 冯则坤 何华辉 |
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| 作者单位： | 华中科技大学,电子科学与技术系,湖北,武汉,430074;华中科技大学,电子科学与技术系,湖北,武汉,430074;华中科技大学,电子科学与技术系,湖北,武汉,430074 |
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| 摘 要： | 用柠檬酸法合成了不同组分的Ni-Zn铁氧体粉末,利用XRD、SEM分析手段对铁氧体粉末的结构和形貌进行了研究,利用网络分析仪测量了微波频段铁氧体粉末的电磁参数,考察了铁氧体组分变化对其电磁参数的影响。结果表明,用柠檬酸法合成的铁氧体粉末的ε′随测试频率的提高变化很小,随铁氧体中Zn含量的增大而减小;而ε的值一直保持很小;μ′在2~9GHz范围内随铁氧体中Zn含量的增加而减小,而在9~18GHz范围内则变化很小;μ基本随铁氧体中Zn含量的增加而减小。
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| 关 键 词： | Ni-Zn铁氧体 柠檬酸法 电磁参数 |
| 文章编号： | 1001-3830(2006)05-0029-03 |
| 收稿时间： | 2006-02-06 |
| 修稿时间： | 2006-04-12 |
The Microstructure and Electromagnetic Properties of Ni-Zn Ferrite Prepared by Citrate Method |
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| HU Chang-ji,FENG Ze-kun,HE Hua-hui. The Microstructure and Electromagnetic Properties of Ni-Zn Ferrite Prepared by Citrate Method[J]. Journal of Magnetic Materials and Devices, 2006, 37(5): 29-31 |
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| Authors: | HU Chang-ji FENG Ze-kun HE Hua-hui |
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| Affiliation: | Department of Electronic Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China |
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| Abstract: | Ni-Zn ferrite powders with different composition were prepared by citrate method. The microstructureand morphology of the samples were characterized by means of XRD and SEM; also, the electromagnetic parameters ofNi-Zn ferrite were measured by using the network analyzer at microwave band. The results shows that, the real part ofthe permittivity of synthesized powders varies small with frequency and deceases with increasing Zn content; theimaginary part of the permittivity is very small; the real part of the permeability of synthesized powders deceases withincreasing Zn content in the range of 2-9GHz but varies small in the range of 9-18GHz; the imaginary part of thepermeability decreases with increasing Zn content. |
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| Keywords: | Ni-Zn ferrite citrate method electromagnetic parameter |
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