铁氮化合物吸收剂的制备及其微波吸收特性的研究

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材料工程 ›› 2007, Vol. 0 ›› Issue (2) : 30-33,38.

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工艺

铁氮化合物吸收剂的制备及其微波吸收特性的研究

刘志伟^1,2, 杨东方², 赵会友¹

作者信息 +

Preparation and Microwave Characterization of Ultrafine Nitriding Magnetic Particles

LIU Zhi-wei^1,2, YANG Dong-fang², ZHAO Hui-you ¹

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文章历史 +

摘要

采用固气反应法制备铁氮化合物吸收剂,研究了工艺参数对产物组成、微波电磁参数的影响,既而确定产物中形成较高比例Fe₄N的条件。结果表明:在360℃,3h反应条件下,产物中Fe₄N质量分数最高,为45%;反应时间不变,产物介电常数随反应温度升高而增加,磁导率则相反;反应温度不变,产物磁导率随反应时间的增加而降低;产物经分散处理后制得的吸波材料反射率优于处理前,在11.67GHz处,可达-11.18dB。

Abstract

The nitriding particles were synthesized by the solid-gas reaction method. The effects of the process parameters on the products were investigated to obtain more Fe₄N. The results show that more Fe₄N (45%) is gained at 360℃, 3h. When nitriding time keeps constant, the permeability increases as increasing temperatures, while the permittivity reverses. When nitriding temperature keeps constant, the permittivity fall as increasing the time. The absorbing properties become better by mean of dispersion and the reflectivity reach -11.18 at 11.67GHz.

导出引用

刘志伟, 杨东方, 赵会友. 铁氮化合物吸收剂的制备及其微波吸收特性的研究[J]. 材料工程, 2007, 0(2): 30-33,38

LIU Zhi-wei, YANG Dong-fang, ZHAO Hui-you . Preparation and Microwave Characterization of Ultrafine Nitriding Magnetic Particles[J]. Journal of Materials Engineering, 2007, 0(2): 30-33,38

中图分类号： TM25

参考文献

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