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Dielectric Characteristics and Microwave Absorption of Graphene Composite Materials

Nowadays, many types of materials are elaborated for microwave absorption applications. Carbon-based nanoparticles belong to these types of materials. Among these, graphene presents some distinctive features for electromagnetic radiation absorption and thus microwave isolation applications. In this...

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Detalles Bibliográficos
Autores principales: Rubrice, Kevin, Castel, Xavier, Himdi, Mohamed, Parneix, Patrick
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5456615/
https://www.ncbi.nlm.nih.gov/pubmed/28773948
http://dx.doi.org/10.3390/ma9100825
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author Rubrice, Kevin
Castel, Xavier
Himdi, Mohamed
Parneix, Patrick
author_facet Rubrice, Kevin
Castel, Xavier
Himdi, Mohamed
Parneix, Patrick
author_sort Rubrice, Kevin
collection PubMed
description Nowadays, many types of materials are elaborated for microwave absorption applications. Carbon-based nanoparticles belong to these types of materials. Among these, graphene presents some distinctive features for electromagnetic radiation absorption and thus microwave isolation applications. In this paper, the dielectric characteristics and microwave absorption properties of epoxy resin loaded with graphene particles are presented from 2 GHz to 18 GHz. The influence of various parameters such as particle size (3 µm, 6–8 µm, and 15 µm) and weight ratio (from 5% to 25%) are presented, studied, and discussed. The sample loaded with the smallest graphene size (3 µm) and the highest weight ratio (25%) exhibits high loss tangent (tanδ = 0.36) and a middle dielectric constant ε′ = 12–14 in the 8–10 GHz frequency range. As expected, this sample also provides the highest absorption level: from 5 dB/cm at 4 GHz to 16 dB/cm at 18 GHz.
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spelling pubmed-54566152017-07-28 Dielectric Characteristics and Microwave Absorption of Graphene Composite Materials Rubrice, Kevin Castel, Xavier Himdi, Mohamed Parneix, Patrick Materials (Basel) Article Nowadays, many types of materials are elaborated for microwave absorption applications. Carbon-based nanoparticles belong to these types of materials. Among these, graphene presents some distinctive features for electromagnetic radiation absorption and thus microwave isolation applications. In this paper, the dielectric characteristics and microwave absorption properties of epoxy resin loaded with graphene particles are presented from 2 GHz to 18 GHz. The influence of various parameters such as particle size (3 µm, 6–8 µm, and 15 µm) and weight ratio (from 5% to 25%) are presented, studied, and discussed. The sample loaded with the smallest graphene size (3 µm) and the highest weight ratio (25%) exhibits high loss tangent (tanδ = 0.36) and a middle dielectric constant ε′ = 12–14 in the 8–10 GHz frequency range. As expected, this sample also provides the highest absorption level: from 5 dB/cm at 4 GHz to 16 dB/cm at 18 GHz. MDPI 2016-10-13 /pmc/articles/PMC5456615/ /pubmed/28773948 http://dx.doi.org/10.3390/ma9100825 Text en © 2016 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Rubrice, Kevin
Castel, Xavier
Himdi, Mohamed
Parneix, Patrick
Dielectric Characteristics and Microwave Absorption of Graphene Composite Materials
title Dielectric Characteristics and Microwave Absorption of Graphene Composite Materials
title_full Dielectric Characteristics and Microwave Absorption of Graphene Composite Materials
title_fullStr Dielectric Characteristics and Microwave Absorption of Graphene Composite Materials
title_full_unstemmed Dielectric Characteristics and Microwave Absorption of Graphene Composite Materials
title_short Dielectric Characteristics and Microwave Absorption of Graphene Composite Materials
title_sort dielectric characteristics and microwave absorption of graphene composite materials
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5456615/
https://www.ncbi.nlm.nih.gov/pubmed/28773948
http://dx.doi.org/10.3390/ma9100825
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