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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...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2016
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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. |
format | Online Article Text |
id | pubmed-5456615 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
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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