本文以电沉积法制备了泡沫镍材料,并在泡沫镍材料空隙内生长了纳米棒状Fe2O3,制备了Fe2O3/泡沫镍复合材料,测试了复合材料在Ku(12.4～18 GHz)频段的介电常数和电磁屏蔽效能.实验结果表明:复合材料具有较高的介电常数,介电常数的实部和虚部最大值可分别达到51和100.该复合材料的电磁屏蔽效能则随频率的增大而增加,并在20～33 dB范围内变化,表明该材料具有潜在的实际应用价值.
参考文献
| [1] | Eck Van W .Electromagnetic radiation from video display units:an eavesdropping risk[J].Computers ＆ Security,1985,4:269-286. |
| [2] | Ezquerra T A;Kremer F;Mohammadi M et al.Conductivity measurements in polymeric insulator conductor systems[J].Synthetic Metals,1989,28:83-88. |
| [3] | 丁世敬,赵跃智,葛德彪.电磁屏蔽材料研究进展[J].材料导报,2008(04):30-33,37. |
| [4] | 王晓辉,唐露新,李运智,唐劲天.电磁屏蔽技术及材料应用研究新动向[J].材料开发与应用,2008(02):67-71. |
| [5] | Banhart J;Manufacture .Characterization and application of cellular metals and metal foams[J].Progress in Materials Science,2001,46:559-632. |
| [6] | 凤仪,郑海务,朱震刚,陶宁.闭孔泡沫铝的电磁屏蔽性能[J].中国有色金属学报,2004(01):33-36. |
| [7] | X. Badiche;S. Forest;T. Guibert;Y. Bienvenu;J. -D. Bartout;P. Ienny;M. Croset;H. Bernet .Mechanical properties and non-homogeneous deformation of open-cell nickel foams: application of the mechanics of cellular solids and of porous materials[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2000(1/2):276-288. |
| [8] | Montillet A;Comiti J;Legrand J .Determination of structural parameters of metallic foam from permeametry measurement[J].Materials Science,1992,27:4460-4464. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%