Development of a microwave absorbing material based on molybdenum-doped niobium pentoxide

Detalhes bibliográficos
Autor(a) principal: Gurgel,D. P.
Data de Publicação: 2019
Outros Autores: Queiroz Jr.,I. S., Silva Jr.,M. Q. da, Andrade,H. D. de, Gomes,U. U., Karimi,M. M.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Cerâmica (São Paulo. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132019000500007
Resumo: Abstract This work aimed to perform the characterization of electrical properties of niobium pentoxide, Nb2O5, pure and doped with molybdenum, prepared by powder metallurgy route and to do a comparative analysis of the influence of this material when sintered in a muffle or in a microwave oven. The results showed that the doping of the niobium pentoxide with 0.5% or 1% of molybdenum along with the process of sintering in a microwave oven make the material more applicable as a microwave absorber material for electromagnetic radiation in the UHF (ultra-high frequency) range between 0.3 to 3 GHz. The motivation of this work was associated with the fact that in Brazil are located two of the largest niobium reserves in the world. Under this view, the study of the processing of the ceramic materials is important considering possible technological applications.
id USP-29_50b837f043ce56b6bad2c303fa61bf67
oai_identifier_str oai:scielo:S0366-69132019000500007
network_acronym_str USP-29
network_name_str Cerâmica (São Paulo. Online)
repository_id_str
spelling Development of a microwave absorbing material based on molybdenum-doped niobium pentoxidemicrowave absorbing materialniobium pentoxidemolybdenummicrowave sinteringAbstract This work aimed to perform the characterization of electrical properties of niobium pentoxide, Nb2O5, pure and doped with molybdenum, prepared by powder metallurgy route and to do a comparative analysis of the influence of this material when sintered in a muffle or in a microwave oven. The results showed that the doping of the niobium pentoxide with 0.5% or 1% of molybdenum along with the process of sintering in a microwave oven make the material more applicable as a microwave absorber material for electromagnetic radiation in the UHF (ultra-high frequency) range between 0.3 to 3 GHz. The motivation of this work was associated with the fact that in Brazil are located two of the largest niobium reserves in the world. Under this view, the study of the processing of the ceramic materials is important considering possible technological applications.Associação Brasileira de Cerâmica2019-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132019000500007Cerâmica v.65 suppl.1 2019reponame:Cerâmica (São Paulo. Online)instname:Universidade de São Paulo (USP)instacron:USP10.1590/0366-6913201965s12559info:eu-repo/semantics/openAccessGurgel,D. P.Queiroz Jr.,I. S.Silva Jr.,M. Q. daAndrade,H. D. deGomes,U. U.Karimi,M. M.eng2019-03-18T00:00:00Zoai:scielo:S0366-69132019000500007Revistahttps://www.scielo.br/j/ce/PUBhttps://old.scielo.br/oai/scielo-oai.phpceram.abc@gmail.com||ceram.abc@gmail.com1678-45530366-6913opendoar:2019-03-18T00:00Cerâmica (São Paulo. Online) - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv Development of a microwave absorbing material based on molybdenum-doped niobium pentoxide
title Development of a microwave absorbing material based on molybdenum-doped niobium pentoxide
spellingShingle Development of a microwave absorbing material based on molybdenum-doped niobium pentoxide
Gurgel,D. P.
microwave absorbing material
niobium pentoxide
molybdenum
microwave sintering
title_short Development of a microwave absorbing material based on molybdenum-doped niobium pentoxide
title_full Development of a microwave absorbing material based on molybdenum-doped niobium pentoxide
title_fullStr Development of a microwave absorbing material based on molybdenum-doped niobium pentoxide
title_full_unstemmed Development of a microwave absorbing material based on molybdenum-doped niobium pentoxide
title_sort Development of a microwave absorbing material based on molybdenum-doped niobium pentoxide
author Gurgel,D. P.
author_facet Gurgel,D. P.
Queiroz Jr.,I. S.
Silva Jr.,M. Q. da
Andrade,H. D. de
Gomes,U. U.
Karimi,M. M.
author_role author
author2 Queiroz Jr.,I. S.
Silva Jr.,M. Q. da
Andrade,H. D. de
Gomes,U. U.
Karimi,M. M.
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Gurgel,D. P.
Queiroz Jr.,I. S.
Silva Jr.,M. Q. da
Andrade,H. D. de
Gomes,U. U.
Karimi,M. M.
dc.subject.por.fl_str_mv microwave absorbing material
niobium pentoxide
molybdenum
microwave sintering
topic microwave absorbing material
niobium pentoxide
molybdenum
microwave sintering
description Abstract This work aimed to perform the characterization of electrical properties of niobium pentoxide, Nb2O5, pure and doped with molybdenum, prepared by powder metallurgy route and to do a comparative analysis of the influence of this material when sintered in a muffle or in a microwave oven. The results showed that the doping of the niobium pentoxide with 0.5% or 1% of molybdenum along with the process of sintering in a microwave oven make the material more applicable as a microwave absorber material for electromagnetic radiation in the UHF (ultra-high frequency) range between 0.3 to 3 GHz. The motivation of this work was associated with the fact that in Brazil are located two of the largest niobium reserves in the world. Under this view, the study of the processing of the ceramic materials is important considering possible technological applications.
publishDate 2019
dc.date.none.fl_str_mv 2019-01-01
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=S0366-69132019000500007
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132019000500007
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/0366-6913201965s12559
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 Associação Brasileira de Cerâmica
publisher.none.fl_str_mv Associação Brasileira de Cerâmica
dc.source.none.fl_str_mv Cerâmica v.65 suppl.1 2019
reponame:Cerâmica (São Paulo. Online)
instname:Universidade de São Paulo (USP)
instacron:USP
instname_str Universidade de São Paulo (USP)
instacron_str USP
institution USP
reponame_str Cerâmica (São Paulo. Online)
collection Cerâmica (São Paulo. Online)
repository.name.fl_str_mv Cerâmica (São Paulo. Online) - Universidade de São Paulo (USP)
repository.mail.fl_str_mv ceram.abc@gmail.com||ceram.abc@gmail.com
_version_ 1748936784618717184

Registros relacionados