نویسندگان
1 دانشگاه امام علی (ع)، دانشکده علوم پایه، تهران، ایران.
2 دانشگاه تربیت مدرس، دانشکده مهندسی مواد، تهران، ایران.
3 دانشگاه تبریز، دانشکده مهندسی مواد، تبریز، ایران.
چکیده
در این تحقیق به بررسی خواص ساختاری، مغناطیسی و جذب امواج مایکروویو نانوکامپوزیت های جاذب ساخته شده از طریـق پوشـش دهـی الیـاف
کربنی ) (CFsبا نانوذرات مگنتیت ) (Fe3O4نوسط رسوب دهی الکتروفورتیک ) (EPDبهبود یافته، پرداخته شده است. ابتدا نانوذرات مگنتیـت بـه روش هـم رسـوبی
تهیه شده و سپس به وسیله ی فرآیند رسوب دهی الکتروفورتیک بهبود یافته روی CFsپوشش داده شد. بررسی خواص مغناطیسی نشان داد کـه مقـادیر مغنـاطش
اشباع و وادارندگی نانوپودر مگنتیت پس از انجام فرآیند رسوب دهی الکتروفورتیک به ترتیـب از 72,3بـه 33,1 emu/g از 4,9بـه 168 Oe بـرای نانوکامپوزیـت
مگنتیت/الیاف کربنی می رسد. نتایج آزمون جذب امواج مایکروویو در محدوده ی بسـامدی 8,2تـا 12,4 GHzنشـان داد کـه میـزان جـذب مـوج نانوکامپوزیـت
مگنتیت/الیاف کربنی به شدت به ضخامت آن بستگی دارد. مقدار بیشینه ی جذب موجی در حدود -10,2 dBدر 10 GHzبا پهنای باند جـذب مـوثری در حـدود
2 GHzبرای نمونه ی با ضخامت 2 میلیمتر به دست آمد
کلیدواژه‌ها
عنوان مقاله [English]
Synthesis of the Microwave Absorber Fe3O4/CFs Nanocomposite Via Electrophoretic Deposition With a Wide Effective Absorption Bandwidth
نویسندگان [English]
- Mahdi Gholampour 1
- Farid Movassagh-Alanagh 2
- Hamed Salimkhani 3
1 Imam Ali university, Department of physic, Tehran, Iran.
2 Tarbiat Modares University, Department of Materials Engineering, Tehran, Iran.
3 Tabriz University, Department of Mechanical Engineering, Tabriz, Iran.
چکیده [English]
In this study, the structural, magnetic and microwave absorption properties of a microwave absorber
composite fabricated through electrophoretic deposition (EPD) of Fe3O4 nano-particles on carbon fibers (CFs) were
studied. Firstly, co-precipitation method was employed to synthesize the Fe3O4 nano-particles. Then, these assynthesized Fe3O4 nano-particles were successfully deposited on CFs using a modified EPD process. The measured
magnetic properties of the as-synthesized Fe3O4 nano-powder and the Fe3O4/CFs nano-composite showed that the
saturation magnetization of the bare Fe3O4 was decreased from 72.3 to 33.1 emu/g for the Fe3O4/CFs nano-composite
and also its corecivity was increased from 4.9 to 168 Oe for the nano-composite. The results of reflection loss (RL)
measurements in the 8.2- 12.4 GHz frequency range indicated that the RL of Fe3O4/CFs nano-composites are
significantly influenced by their thickness. The maximum RL value of -10.2 dB at 10 GHz with an effective absorption
bandwidth about 2 GHz was obtained for the sample with the thickness of 2 mm
کلیدواژه‌ها [English]
- Carbon fibers
- Microwave absorption
- Nano-composite
- Fe3O4 nano-particles
- Pourbaferani, A. and Kiyani, A., Investigation of microwave absorption in CoFe2O4/Zn nano-composites, The 3rd Iran Electromagnetic Engineering Conference (CAM), (2014) 1-4.
- Pourbaferani, A., Fabrication of CoFe2O4 microwave absorber nano-composites and study on their structural, magnetical and microwave absorption properties, MSc Thesis, Isfahan industrial University, Islamic republic of Iran, (2013).
- Roh, J.S., Chi, Y.S. and Kang, T.J., Electromagnetic Shielding Effectiveness of Multifunctional Metal Composite Fabrics, Textile Research Journal, 78( 9) (2008) 825- 835.
- Chengwen, Q., Xu, J., Zhang, Z., Tian, L., Xiao, S., Liu, Y. and Xu, P., Magnetic properties and microwave absorption properties of carbon fibers coated by Fe3O4 nanoparticles, Journal of Alloys and Compounds, 506 (2010) 93-97.
- Faxiang, Q. and Peng, H.X., Ferromagnetic microwires enabled multifunctional composite materials, Progress in Materials Science, 58 (2013) 183-259.
- Grabis, J., Heidemane, G. and Rašmane, D., Preparation of Fe3O4 and γ-Fe2O3 nanoparticles by liquid and gas phase processes, Materials Science, 14 (2008) 292-295.
- Qiuling, Z., Han, C. and Li, H., Selective and efficient magnetic separation of Pb2+ via gold nanoparticle-based visual binding enrichment, Chemical Communications, 46 (2010) 7337-7339.
- Zengyong, C., Cheng, H., Xie, W. and Sun, L., Effects of diameter and hollow structure on the microwave absorption properties of short carbon fibers, Ceramics International, 38 (2012) 4867-4873.
- Ying, L., Zhang, Z., Xiao, S., Qiang, C., Tian, L. and Xu, J., Preparation and properties of cobalt oxides coated carbon fibers as microwave-absorbing materials, Applied Surface Science, 257 (2011) 7678-7683.
- Kornev, K.G., Halverson, D., Korneva, G., Gogotsi, Y. and Friedman, G., Magnetostatic interactions between carbon nanotubes filled with magnetic nanoparticles, Applied Physics Letters, 92 (20080 233117-233125.
- Korneva, G., Ye, H., Gogotsi, Y., Halverson, D., Friedman, G., Bradley, J.C. and Kornev, K.G., Carbon nanotubes loaded with magnetic particles, Nano letters, 5 (2005) 879-884.
- Kong, L., Yin, X., Yuan, X., Zhang, Y., Liu, X., Cheng, L. and Zhang, L., Electromagnetic wave absorption properties of graphene modified with carbon nanotube/poly (dimethyl siloxane) composites, Carbon, 73 (2014) 185-193.
- Guan, P.F., Zhang, X.F. and Guo, J.J., Assembled Fe3O4 nanoparticles on graphene for enhanced electromagnetic wave losses, Applied Physics Letters, 101 (2012) 153108-153109.
- Han, M., Yin, X., Kong, L., Li, M., Duan, W., Zhang, L. and Cheng, L., Graphene-wrapped ZnO hollow spheres with enhanced electromagnetic wave absorption properties, Journal of Materials Chemistry A, 39 (2014) 16403-16409.
- Xuecai, T., Li, M., Cai, P., Luo, L. and Zou, X., An amperometric cholesterol biosensor based on multiwalled carbon nanotubes and organically modified sol-gel/chitosan hybrid composite film, Analytical Biochemistry, 337 (2005) 111-120.
- Ruiying, L., Yang, Z. and Li, L., Effect of additives on mechanical properties of oxidation-resistant carbon/carbon composite fabricated by rapid CVD method, Carbon, 38 (2000) 2109-2115.
- Yuxi, X., Sheng, K., Li, C. and Shi, G., Self-assembled graphene hydrogel via a one-step hydrothermal process, ACS Nano, 4 (2010) 4324-4330.
- Salimkhani, H., Motei-Dizaji, A., Hashemi, E., Palmeh, P., Sabeghi, G. and Salimkhani, S., Magnetic and microwave absorptive properties of electrophoretically deposited nano-CoFe2O4 as a 3D structure on carbon fibers, Ceramics International, 42 (2016) 12709-12714.
- Salimkhani, H., Palmeh, P., Khiabani, A.B., Hashemi, E., Matinpour, S., Salimkhani, H. and Asl, M.S., Electrophoretic deposition of spherical carbonyl iron particles on carbon fibers as a microwave absorbent composite, Surfaces and Interfaces, 1 (2016) 18-22.
- Casula, M., Jun, F.Y.W, Zaziski, D.J., Chan, E.M., Corrias, A. and Alivisatos, A.P., The concept of delayed nucleation in nanocrystal growth demonstrated for the case of iron oxide nanodisks, Journal of the American Chemical Society, 128 (2006) 1675-1682.
- Seyyed Afghahi, S.S., Peymanfar, R., Javanshir, S. and Javidan, A., Preparation and Investigation of Structural, Magnetic and Microwave Absorption Properties of Ba 2Sr0.2La0.6MnO3/MWCNT Nanocomposite in Comparison with Ba0.2Sr0.2La0.6MnO3 in X-band Region, Nanoscale, 2( 2) (2015) 58-67.
- Cullity, B.D. and Chad, D.G., Introduction to magnetic materials, Second ed., John Wiley & Sons, (2011) 325-341.
)