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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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Savi, Patrizia
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (26/26 displayed)
- 2021Explicit Complex Solutions to the Fresnel Coefficients
- 2020Biochar addition to inorganic binders
- 2019Graphene and MWCNT Printed Films: Preparation and RF Electrical Properties Studycitations
- 2019Analysis of biochar with different pyrolysis temperatures used as filler in epoxy resin compositescitations
- 2019Multi-Walled Carbon Nanotubes Composites for Microwave Absorbing Applicationscitations
- 2017THE EFFECT OF CARBON NANOTUBES CONCENTRATION ON COMPLEX PERMITTIVITY OF NANOCOMPOSITEScitations
- 2015Soil moisture retrieval based on LHCP and RHCP GNSS-R signals
- 2015MWCNTs nanocomposites for space applicationscitations
- 2015Analysis and Modeling of Epoxy/MWCNT Composites
- 2015Improvement in electromagnetic interference shielding effectiveness of cement composites using carbonaceous nano/micro inertscitations
- 2015Investigation of epoxy resin/multiwalled carbon nanotube nanocomposite behavior at low frequencycitations
- 2014Analysis of MWCNT/epoxy composites at microwave frequency: reproducibility investigation
- 2014Wide band characterization of MWCNTs composites based on epoxy resincitations
- 2014ANALYSIS OF MICROWAVE ABSORBING PROPERTIES OF EPOXY MWCNT COMPOSITEScitations
- 2014Analysis of MWCNTS/EPOXY COMPOSITES at microwave frequency: a reproducibility studycitations
- 2014A Fully Software GNSS-R Receiver for Soil Monitoringcitations
- 2014Characterization of nanocomposites based on MWCNTs for radar absorbing application
- 2013Microwave Absorption Properties in Epoxy Resin Multi Walled Carbon Nanotubes Compositescitations
- 2013Wide Band Microwave Characterization of MWCNTS/Epoxy Composites
- 2013Microwave Absorbing Properties of Multi Walled Carbon Nanotubes
- 2012Permittivity measurement of sand and clay soil with a capacitive sensor
- 2010The Role of Probe Attenuation in the Time-Domain Reflectometry Characterization of Dielectricscitations
- 2009Estimation of the Permittivity of Dielectrics from the Scattering Responses of TEM Waveguides
- 2007Soil permittivity estimation from TDR measurements: properties and guidelinescitations
- 2007TDR response properties and their use in the estimation of soil permittivitycitations
- 2005TDR Measurements for Soil Applications
Places of action
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article
Multi-Walled Carbon Nanotubes Composites for Microwave Absorbing Applications
Abstract
The response of materials to impinging electromagnetic waves is mainly determined by their dielectric (complex permittivity) and magnetic (complex permeability). In particular, radar absorbing materials are characterized by high complex permittivity (and eventually large values of magnetic permeability), Indeed, energy dissipation by dielectric relaxation and carrier conduction are principally responsible for diminishing microwave radiation reflection and transmission in non-magnetic materials. Therefore, the scientific and technological community has been investigating lightweight composites with high dielectric permittivity in order to improve the microwave absorption (i.e., radar cross-section reduction) in structural materials for the aerospace industry. Multiwalled carbon nanotubes films and their composites with different kind of polymeric resins are regarded as promising materials for radar absorbing applications because of their high permittivity. Nanocomposites based on commercial multi-wall carbon nano-tube (MWCNT) fillers dispersed in an epoxy resin matrix were fabricated. The morphology of the filler was analyzed by Field emission scanning electron microscopy (FESEM) and Raman spectroscopy, while the complex permittivity and the radiation reflection coefficient of the composites was measured in the radio frequency range. The reflection coefficient of a single-layer structure backed by a metallic plate was simulated based on the measured permittivity. Simulation achievements were compared to the measured reflection coefficient. Besides, the influence of morphological MWCNT parameters (i.e., aspect ratio and specific surface area) on the reflection coefficient was evaluated. Results verify that relatively low weight percent of MWCNTs are suitable for microwave absorption applications when incorporated into polymer matrix (i.e., epoxy resin).