Investigation of sustainable porous carbon as radar absorbing material
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Matéria (Rio de Janeiro. Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-70762021000200309 |
Resumo: | ABSTRACT Radar Absorbing Materials (RAMs) are composite materials able to attenuate an incident electromagnetic wave. Usually, RAMs are made of a polymeric matrix and an electromagnetic absorbent filler, such as silicon carbide or carbon black. Several materials have been investigated as potential fillers, aiming to improve the Reflection Loss (RL) and absorption bandwidth broadening. In this paper, a composite made with silicone rubber and biochar was investigated as a sustainable porous carbon made with biomass waste. Five different composites were characterized, composed of 1 - 5 wt.% of biochar in the silicone rubber. Although the RL of pure biochar composites is not significant, it was demonstrated here how a biochar composite can improve the RL of a RAM material when it is applied as a double-layer structure. While the RL of a ferrite-based RAM with 2.0 mm thickness reaches -28 dB, a combination of this RAM with biochar composite reaches ~ -60 dB with the same thickness. The double-layer structure with 2.3 mm thickness can have an absorption bandwidth of 2.95 GHz over the X-band frequency range, and a structure with 2.6 mm thickness can reach a RL of ~ -76 dB. This demonstrates a sustainable, cheaper, and lighter material application (i.e., biochar), which is successfully used in the development of high-efficient electromagnetic shield or sensors. |
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Investigation of sustainable porous carbon as radar absorbing materialBiocharpermittivityRAMsustainabilityreflectivityABSTRACT Radar Absorbing Materials (RAMs) are composite materials able to attenuate an incident electromagnetic wave. Usually, RAMs are made of a polymeric matrix and an electromagnetic absorbent filler, such as silicon carbide or carbon black. Several materials have been investigated as potential fillers, aiming to improve the Reflection Loss (RL) and absorption bandwidth broadening. In this paper, a composite made with silicone rubber and biochar was investigated as a sustainable porous carbon made with biomass waste. Five different composites were characterized, composed of 1 - 5 wt.% of biochar in the silicone rubber. Although the RL of pure biochar composites is not significant, it was demonstrated here how a biochar composite can improve the RL of a RAM material when it is applied as a double-layer structure. While the RL of a ferrite-based RAM with 2.0 mm thickness reaches -28 dB, a combination of this RAM with biochar composite reaches ~ -60 dB with the same thickness. The double-layer structure with 2.3 mm thickness can have an absorption bandwidth of 2.95 GHz over the X-band frequency range, and a structure with 2.6 mm thickness can reach a RL of ~ -76 dB. This demonstrates a sustainable, cheaper, and lighter material application (i.e., biochar), which is successfully used in the development of high-efficient electromagnetic shield or sensors.Laboratório de Hidrogênio, Coppe - Universidade Federal do Rio de Janeiroem cooperação com a Associação Brasileira do Hidrogênio, ABH22021-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-70762021000200309Matéria (Rio de Janeiro) v.26 n.2 2021reponame:Matéria (Rio de Janeiro. Online)instname:Matéria (Rio de Janeiro. Online)instacron:RLAM10.1590/s1517-707620210002.1263info:eu-repo/semantics/openAccessBoss,Alan Fernando NeyFerreira,Helena RavagliaBraghiroli,Flavia LegaAmaral-Labat,Gisele AparecidaSouza,Ariane Aparecida Teixeira deBouafif,HassineKoubaa,AhmedBaldan,Mauricio RibeiroSilva,Guilherme Frederico Bernardo Lenz eeng2021-05-21T00:00:00Zoai:scielo:S1517-70762021000200309Revistahttp://www.materia.coppe.ufrj.br/https://old.scielo.br/oai/scielo-oai.php||materia@labh2.coppe.ufrj.br1517-70761517-7076opendoar:2021-05-21T00:00Matéria (Rio de Janeiro. Online) - Matéria (Rio de Janeiro. Online)false |
dc.title.none.fl_str_mv |
Investigation of sustainable porous carbon as radar absorbing material |
title |
Investigation of sustainable porous carbon as radar absorbing material |
spellingShingle |
Investigation of sustainable porous carbon as radar absorbing material Boss,Alan Fernando Ney Biochar permittivity RAM sustainability reflectivity |
title_short |
Investigation of sustainable porous carbon as radar absorbing material |
title_full |
Investigation of sustainable porous carbon as radar absorbing material |
title_fullStr |
Investigation of sustainable porous carbon as radar absorbing material |
title_full_unstemmed |
Investigation of sustainable porous carbon as radar absorbing material |
title_sort |
Investigation of sustainable porous carbon as radar absorbing material |
author |
Boss,Alan Fernando Ney |
author_facet |
Boss,Alan Fernando Ney Ferreira,Helena Ravaglia Braghiroli,Flavia Lega Amaral-Labat,Gisele Aparecida Souza,Ariane Aparecida Teixeira de Bouafif,Hassine Koubaa,Ahmed Baldan,Mauricio Ribeiro Silva,Guilherme Frederico Bernardo Lenz e |
author_role |
author |
author2 |
Ferreira,Helena Ravaglia Braghiroli,Flavia Lega Amaral-Labat,Gisele Aparecida Souza,Ariane Aparecida Teixeira de Bouafif,Hassine Koubaa,Ahmed Baldan,Mauricio Ribeiro Silva,Guilherme Frederico Bernardo Lenz e |
author2_role |
author author author author author author author author |
dc.contributor.author.fl_str_mv |
Boss,Alan Fernando Ney Ferreira,Helena Ravaglia Braghiroli,Flavia Lega Amaral-Labat,Gisele Aparecida Souza,Ariane Aparecida Teixeira de Bouafif,Hassine Koubaa,Ahmed Baldan,Mauricio Ribeiro Silva,Guilherme Frederico Bernardo Lenz e |
dc.subject.por.fl_str_mv |
Biochar permittivity RAM sustainability reflectivity |
topic |
Biochar permittivity RAM sustainability reflectivity |
description |
ABSTRACT Radar Absorbing Materials (RAMs) are composite materials able to attenuate an incident electromagnetic wave. Usually, RAMs are made of a polymeric matrix and an electromagnetic absorbent filler, such as silicon carbide or carbon black. Several materials have been investigated as potential fillers, aiming to improve the Reflection Loss (RL) and absorption bandwidth broadening. In this paper, a composite made with silicone rubber and biochar was investigated as a sustainable porous carbon made with biomass waste. Five different composites were characterized, composed of 1 - 5 wt.% of biochar in the silicone rubber. Although the RL of pure biochar composites is not significant, it was demonstrated here how a biochar composite can improve the RL of a RAM material when it is applied as a double-layer structure. While the RL of a ferrite-based RAM with 2.0 mm thickness reaches -28 dB, a combination of this RAM with biochar composite reaches ~ -60 dB with the same thickness. The double-layer structure with 2.3 mm thickness can have an absorption bandwidth of 2.95 GHz over the X-band frequency range, and a structure with 2.6 mm thickness can reach a RL of ~ -76 dB. This demonstrates a sustainable, cheaper, and lighter material application (i.e., biochar), which is successfully used in the development of high-efficient electromagnetic shield or sensors. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-01-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-70762021000200309 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-70762021000200309 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/s1517-707620210002.1263 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Laboratório de Hidrogênio, Coppe - Universidade Federal do Rio de Janeiro em cooperação com a Associação Brasileira do Hidrogênio, ABH2 |
publisher.none.fl_str_mv |
Laboratório de Hidrogênio, Coppe - Universidade Federal do Rio de Janeiro em cooperação com a Associação Brasileira do Hidrogênio, ABH2 |
dc.source.none.fl_str_mv |
Matéria (Rio de Janeiro) v.26 n.2 2021 reponame:Matéria (Rio de Janeiro. Online) instname:Matéria (Rio de Janeiro. Online) instacron:RLAM |
instname_str |
Matéria (Rio de Janeiro. Online) |
instacron_str |
RLAM |
institution |
RLAM |
reponame_str |
Matéria (Rio de Janeiro. Online) |
collection |
Matéria (Rio de Janeiro. Online) |
repository.name.fl_str_mv |
Matéria (Rio de Janeiro. Online) - Matéria (Rio de Janeiro. Online) |
repository.mail.fl_str_mv |
||materia@labh2.coppe.ufrj.br |
_version_ |
1752126693931220992 |