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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Suzuki, Kiyonori
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (16/16 displayed)
- 2023Effect of grain size on the core loss of nanocrystalline Fe86B13Cu1 prepared by ultra-rapid annealingcitations
- 2022Resolving the Complex Spin Structure in Fe-Based Soft Magnetic Nanocrystalline Material by Magnetic Small-Angle Neutron Scattering
- 2022Unraveling the magnetic softness in Fe–Ni–B-based nanocrystalline material by magnetic small-angle neutron scatteringcitations
- 2022Uniaxial polarization analysis of bulk ferromagnets: theory and first experimental resultscitations
- 2020Magnetic Guinier lawcitations
- 2020Engineered Porous Nanocomposites That Deliver Remarkably Low Carbon Capture Energy Costscitations
- 2017Fe3O4@HKUST-1 and Pd/Fe3O4@HKUST-1 as magnetically recyclable catalysts prepared via conversion from a Cu-based ceramiccitations
- 2017Copper-free nanocrystalline soft magnetic materials with high saturation magnetization comparable to that of Si steelcitations
- 2015Lead(II) uptake by aluminium based magnetic framework composites (MFCs) in watercitations
- 2013Magnetization reversal in Nd-Fe-B based nanocomposites as seen by magnetic small-angle neutron scatteringcitations
- 2012The use of plasma treatment for simultaneous carbonization and reduction of iron oxide/polypyrrole core/shell nanoparticlescitations
- 2012Phase reduction of coated maghemite (γ-Fe2O3) nanoparticles under microwave-induced plasma heating for rapid heat treatmentcitations
- 2011Ferromagnetism of polythiophene-capped Au nanoparticles
- 2011Synthesis and electromagnetic interference shielding properties of iron oxide/polypyrrole nanocompositescitations
- 2010Functional magnetic nanocomposites for EMI shielding
- 2009Potential blends of magnetic nano-composites for EMI shielding applications
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document
Potential blends of magnetic nano-composites for EMI shielding applications
Abstract
The diminishing effect of Electromagnetic Interference (EMI) on the performance of electronic and electrical equipment has brought about a need to develop materials with improved EMI shielding capabilities. This study aims to investigate methods of dispersing magnetic nanoparticles in epoxy resin through variations in surface treatment and sample loading, as well as investigating the magnetic properties of such nano-composites relevant to EMI shielding applications.In order to optimise the EMI shielding effectiveness, dispersion of Fe3O4 ferromagnetic nanoparticles throughout the polymer matrix was enhanced through surface functionalisation. Via a direct silanisation method, organosilane agents of 3-aminopropyltriethoxysilane (APTES) and 3-glycidoxypropyltrimethyoxysilane (GPTMS) were employed to functionalise the nanoparticle surfaces with amine and epoxy functional groups respectively. The presence of such active groups was confirmed through FTIR spectra and zeta potential analysis. When compared to bare magnetite, magnetic property characterisation through VSM showed that the thin silane layer only caused a slight reduction of saturation magnetization. The measurements of magnetic permeability and dielectric permittivity of the various blends indicated that the reflectivity loss was greater in the nano-composites containing silane-treated particles, to better suit EMI shielding applications. Blends containing magnetic nanoparticles prepared by surfactant method, and using polypyrrole, were also investigated, along with carbon and platinum-doped gamma Fe2O3 nanoparticles, custom-made using flame spray pyrolysis.