Journal
COMPOSITES PART B-ENGINEERING
Volume 136, Issue -, Pages 135-142Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesb.2017.10.029
Keywords
3D nanocomposites; Nano-structure; Electrical properties; Magnetic properties
Funding
- National Natural Science Foundation of China [51672222]
- Doctorate Foundation of Northwestern Polytechnical University [CX201720]
- Spaceflight Foundation of China [2014-HT-XGD]
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The nanocomposites of combining magnetic nanoparticles with dielectric materials are highly desirable for high performance electromagnetic (EM) wave absorbers due to their great impedance matching property. In this work, 3D ferromagnetic graphene nanocomposites with ZnO nanorods and Fe3O4 nanoparticles co-decorated have been successfully synthesized via a facile solvothermal process in combination with the co-precipitation route, and the EM wave absorption performance is first reported. The maximum reflection loss (R-L) of the 3D RGO/Fe3O4/ZnO nanocomposites reaches -57.0 dB at 13.5 GHz with a matching thickness of only 2.0 mm. The effective absorption bandwidth with the R-L less than -10 dB can be tuned to 10.8 GHz (5.9-16.7 GHz) at the absorber thickness of 1.5-4.0 mm, which covers the whole X band. These results suggest that the 3D nano composites possess the advantages of thin thickness, broad bandwidth, lightweight and strong absorption, and can be used as promising materials for stealth camouflage techniques.
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