| 引用本文: | 刘军,王应德,马彦.Ni-Zn铁氧体粉末的溶胶-凝胶合成及微波性能.[J].国防科技大学学报,2005,27(4):24-27.[点击复制] |
| LIU Jun,WANG Yingde,MA Yan.The Study of the Preparation and Microwave Properties of Ni-Zn Ferrite by Sol-gel Process[J].Journal of National University of Defense Technology,2005,27(4):24-27[点击复制] |
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| Ni-Zn铁氧体粉末的溶胶-凝胶合成及微波性能 |
| 刘军, 王应德, 马彦 |
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(国防科技大学 航天与材料工程学院，湖南 长沙 410073)
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| 摘要: |
| 以硝酸铁、硝酸镍、硝酸锌、柠檬酸和氨水为原料，用溶胶-凝胶法合成了不同组成的Ni-Zn铁氧体粉末。利用热分析、X射线衍射等手段研究了干凝胶热分解行为。利用网络分析仪对铁氧体粉末的电磁性能进行了表征，考察了铁氧体的组成与其电磁性能之间的关系。结果表明，溶胶-凝胶法合成的铁氧体粉末的μ″值随测试频率的提高和Ni-Zn铁氧体中锌含量的增加而减小。 |
| 关键词: 溶胶-凝胶 镍锌铁氧体 柠檬酸 微波性能 |
| DOI： |
| 投稿日期：2005-01-25 |
| 基金项目:国家自然科学基金资助项目(50302015) |
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| The Study of the Preparation and Microwave Properties of Ni-Zn Ferrite by Sol-gel Process |
| LIU Jun, WANG Yingde, MA Yan |
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(College of Aerospace and Materials Engineering, National Univ. of Defense Technology, Changsha 410073, China)
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| Abstract: |
| Ni-Zn ferrite powder with different composition were prepared by Sol-gel process using Fe(NO3)3·9H2O, Ni(NO3)2·6H2O, Zn(NO3)2·6H2O, citrate acid and ammonia as raw materials. The thermal decomposition behavior of dried gel and crystallite size of synthesized powders were studied by using TG-DTA and XRD. Moreover, the relationship of ferrite composition on electromagnetic properties were investigated by network analyzer. The results reveal that the imaginary part of permeability of synthesized powders decreases with frequency and the content of Zn in the Ni-Zn ferrite powder. |
| Keywords: Sol-gel Ni-Zn ferrite citrate acid microwave properties |
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