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纳米铁和氮化铁超顺磁体复合吸收剂的研制
The study of superparamagnetic nanometer iron and nitrided iron as compound obsorber
【摘要】 为了以纳米氮化铁作为吸波材料的吸收剂,利用气相化学反应方法,以氨基有机络合物为活化剂,液态五羰基铁为原料,获得了纳米量级亚单畴磁性氮化铁颗粒.利用TEM和S参数测量仪分析产物的结构和电磁参数.研究表明:制备的材料颗粒尺寸大都在10~100 nm之间,材料主要由Fe和Fe3N的混合物组成;材料在微波段(8~13 GHz)具有一定的介电损耗和磁损耗,可用作吸波材料的吸收剂.计算表明,在该波段,1 mm厚度的吸波材料对电磁波能量最高衰减可达到10 dB以上,具有较好的性能,可作为雷达吸波材料.
【Abstract】 Vapor phase chemical treatment is employed to prepare nanometer superparamagnetic material as absorbent,and the activator of the experiment is amino organic complex compound,the material is liquid organic Fe(CO)5.Nanometer inferior single domain magnetic nitrided iron particular is obtained.Test by TEM and S parameter measurement shows that the size of the prepared material is between 10~100 nm,the essential component is compound of Fe and Fe3N.The material which possesses lossy dielectric and magnetic parameter in microwave band((8~13 GHz),)can be used to absorb electromagnetic energy.The analytical result shows that the material with the thickness of(1 mm) can attenuates electromagnetic energy more than 10 dB,and it is a well radar absorbing material(RAM).
【Key words】 superparamagnetic material; inferior single domain; nitrided iron; radar absorbing material(RAM);
- 【文献出处】 材料科学与工艺 ,Materials Science and Technology , 编辑部邮箱 ,2006年05期
- 【分类号】O482.5
- 【被引频次】13
- 【下载频次】381