Performance of radar absorbing nanocomposites by waveguide measurements

Detalhes bibliográficos
Autor(a) principal: Capitaneo,Jefferson Leixas
Data de Publicação: 2008
Outros Autores: Caffarena,Valeska da Rocha, Ogasawara,Tsuneharu, Pinho,Magali Silveira
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Materials research (São Carlos. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392008000300015
Resumo: Sol-gel synthesis has been investigated in order to produce stoichiometric compositions of Ba3Co2Fe24O41 (Co2Z) at lower calcination temperatures, using citric acid as quelant complex. Using this method, Co2Z ferrite could be synthesized at 950 °C, about 400 °C lower than that of conventional method. Nanocomposites (80:20% weight) of this ferrite with polychloroprene (CR) were obtained for the microwave absorption measurements by mixing, molding and curing mixtures of Ba3Co2Fe24O41 powders with polychloroprene and the additives of vulcanization. The microwave absorption measurements was carried out using the Transmission/Reflection method for the S and X-Ku bands and showed the best performance as Radar Absorber Material (RAM) in 8.0-16.0 GHz range. Thus, the material can be used by reducing the radar signature of the Brazilian Frigates' superstructures.
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spelling Performance of radar absorbing nanocomposites by waveguide measurementshexaferritemicrowave absorptionRAMX-Ku frequenciesSol-gel synthesis has been investigated in order to produce stoichiometric compositions of Ba3Co2Fe24O41 (Co2Z) at lower calcination temperatures, using citric acid as quelant complex. Using this method, Co2Z ferrite could be synthesized at 950 °C, about 400 °C lower than that of conventional method. Nanocomposites (80:20% weight) of this ferrite with polychloroprene (CR) were obtained for the microwave absorption measurements by mixing, molding and curing mixtures of Ba3Co2Fe24O41 powders with polychloroprene and the additives of vulcanization. The microwave absorption measurements was carried out using the Transmission/Reflection method for the S and X-Ku bands and showed the best performance as Radar Absorber Material (RAM) in 8.0-16.0 GHz range. Thus, the material can be used by reducing the radar signature of the Brazilian Frigates' superstructures.ABM, ABC, ABPol2008-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392008000300015Materials Research v.11 n.3 2008reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/S1516-14392008000300015info:eu-repo/semantics/openAccessCapitaneo,Jefferson LeixasCaffarena,Valeska da RochaOgasawara,TsuneharuPinho,Magali Silveiraeng2008-10-29T00:00:00Zoai:scielo:S1516-14392008000300015Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2008-10-29T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false
dc.title.none.fl_str_mv Performance of radar absorbing nanocomposites by waveguide measurements
title Performance of radar absorbing nanocomposites by waveguide measurements
spellingShingle Performance of radar absorbing nanocomposites by waveguide measurements
Capitaneo,Jefferson Leixas
hexaferrite
microwave absorption
RAM
X-Ku frequencies
title_short Performance of radar absorbing nanocomposites by waveguide measurements
title_full Performance of radar absorbing nanocomposites by waveguide measurements
title_fullStr Performance of radar absorbing nanocomposites by waveguide measurements
title_full_unstemmed Performance of radar absorbing nanocomposites by waveguide measurements
title_sort Performance of radar absorbing nanocomposites by waveguide measurements
author Capitaneo,Jefferson Leixas
author_facet Capitaneo,Jefferson Leixas
Caffarena,Valeska da Rocha
Ogasawara,Tsuneharu
Pinho,Magali Silveira
author_role author
author2 Caffarena,Valeska da Rocha
Ogasawara,Tsuneharu
Pinho,Magali Silveira
author2_role author
author
author
dc.contributor.author.fl_str_mv Capitaneo,Jefferson Leixas
Caffarena,Valeska da Rocha
Ogasawara,Tsuneharu
Pinho,Magali Silveira
dc.subject.por.fl_str_mv hexaferrite
microwave absorption
RAM
X-Ku frequencies
topic hexaferrite
microwave absorption
RAM
X-Ku frequencies
description Sol-gel synthesis has been investigated in order to produce stoichiometric compositions of Ba3Co2Fe24O41 (Co2Z) at lower calcination temperatures, using citric acid as quelant complex. Using this method, Co2Z ferrite could be synthesized at 950 °C, about 400 °C lower than that of conventional method. Nanocomposites (80:20% weight) of this ferrite with polychloroprene (CR) were obtained for the microwave absorption measurements by mixing, molding and curing mixtures of Ba3Co2Fe24O41 powders with polychloroprene and the additives of vulcanization. The microwave absorption measurements was carried out using the Transmission/Reflection method for the S and X-Ku bands and showed the best performance as Radar Absorber Material (RAM) in 8.0-16.0 GHz range. Thus, the material can be used by reducing the radar signature of the Brazilian Frigates' superstructures.
publishDate 2008
dc.date.none.fl_str_mv 2008-09-01
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=S1516-14392008000300015
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392008000300015
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1516-14392008000300015
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 ABM, ABC, ABPol
publisher.none.fl_str_mv ABM, ABC, ABPol
dc.source.none.fl_str_mv Materials Research v.11 n.3 2008
reponame:Materials research (São Carlos. Online)
instname:Universidade Federal de São Carlos (UFSCAR)
instacron:ABM ABC ABPOL
instname_str Universidade Federal de São Carlos (UFSCAR)
instacron_str ABM ABC ABPOL
institution ABM ABC ABPOL
reponame_str Materials research (São Carlos. Online)
collection Materials research (São Carlos. Online)
repository.name.fl_str_mv Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)
repository.mail.fl_str_mv dedz@power.ufscar.br
_version_ 1754212658939166720

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