Research on Absorbing Properties of New Porous Metals Materials with Light Weight

Abstract:

The development of electronic science technology makes electromag-netic radiation problems increasingly severe. High-performance absorbing and shielding electromagnetic wave materials with light weight are researched and developed as one of effectiveness methods to restrain electromagnetic radiation and prevent information leakage. The absorbing properties of aluminium foams coating absorbing paint were studied and tested by making use of RCS in “the reflectivity testing measurement of radar absorbing material” of GJB 2038-94 in this work. The effect of absorbent species and metal base structure on absorbing properties of materials was discussed. The results indicate that the absorbing properties of materials coating magnetic dielectric absorbing paint are better than others, and that of the sample CFe are best in 12.0—18.0GHz, while that of the sample CNi’ are optimal in 26.5—40.0GHz; comparing with aluminium alloy plate materials, aluminium alloy foams have some absorbing properties, and after coating absorbing paint, absorbing properties’ improvement of aluminium foams are larger than of aluminium alloy plate that were resulted from complex porous structure mainly of aluminium foams’.

• Periodical: Key Engineering Materials (Volume 815)
• Pages: 42-47
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.815.42
• Online since: August 2019
• Authors: Zhang Yu*
• Keywords: Absorbent, Absorbing Properties, Aluminium Foams, Coating, Porous Metal

References

[1] Imre Norbert Orbulov. Metal matrix syntactic foams produced by pressure infiltration—the effect of infiltration parameters [J]. Materials Science & Engineering 2013 (583): 11-19.

DOI: 10.1016/j.msea.2013.06.066

[2] Degischer H P, Kristy B. Handbook of Cellular Metals: Production, Processing, Applications [M]. Beijing: Chemical Industry Press, 2005. 5-8.

[3] Wang Yingwu, Zuo Xiaoqing, Chen Xianning. Preparation and sound absorption property of Al-Si12 alloy foam core muffler [J] Adv Mater Res,2011, 183-185: 1687.

DOI: 10.4028/www.scientific.net/amr.183-185.1687

[4] S.Y. Kim J.S. Park,H. Nakajima. Fabrication of Lotus-Type Porous Aluminum through Thermal Decomposition Method [J]. Metallurgical and Materials Transactions A . 2009 (4), 937-942.

DOI: 10.1007/s11661-008-9763-3

[5] Gibson L J, Ashby M F. Translating by Liu P S. Cellular Solids: Structure and Properties. Second Edition [M]. Beijing: Tsinghua University Press, 2003.1.

[6] Zhang Chunji, Feng Yi, Zhang Xuebin. Mechanical properties and energy absorption properties of aluminum foamfilled square tubes [J].Trans Nonferrous Metals Soc China, 2010, 20 (8): 1380.

DOI: 10.1016/s1003-6326(09)60308-3

[7] Han FuSheng. Progress in Ultra-light Metallic Foams [J]. Journal of Suzhou Vocational University. 2012, 23 (1): 1-8.

[8] Tagliavia G, Porfiri M, Gupta N. Influence of mositure absorption on flexural properties of syntactic foams [J]. Composites:Part B, 2012, 43: 115-123.

DOI: 10.1016/j.compositesb.2011.06.016

[9] Hosseini S H, Mohseni S H, Asadnia A, et al. Synthesis and microwave absorbing properties of polyaniline/MnFe2O4 nanocomposite [J]. J Alloys Compds, 2011 (509): 4682-4687.

DOI: 10.1016/j.jallcom.2010.11.198

[10] LEE S B, HONG S J, YI J W, et al. Fabrication and electromagnetic properties of Fe nanofibers composites [J]. Met Mater Int, 2012, 18: 165-170.

DOI: 10.1007/s12540-012-0020-3

[11] Zhu Y F, Zhang L, Nausuli T, et al. Synthesis of hollowpoly (aniline-co-pyrrole) -Fe3O4 composite nanospheres and their microwave absorption behavior [J]. Synthetic Met, 2012, 162: 337-343.

DOI: 10.1016/j.synthmet.2011.12.015

[12] Shaibati A, Khani J M V, Amiri G R.Microwave absorption studies of nanocrystalline SrMnx/2 (TiSn)x/4Fe12−xO19 prepared by the citrate sol-gel method [J]. Solid State Commun, 2012, 152: 199-203.

DOI: 10.1016/j.ssc.2011.11.009

[13] Sun C, Sun K N, Chui P F. Microwave absorption properties of Ce-substituted M-type barium ferrite [J]. J Magn Magn Mater, 2012, 324: 802-805.