Obtaining and characterization of W-Cu composite powder produced by mixing and sintering of Ammonium Paratungstate (Apt) and copper nitrate
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRN |
Texto Completo: | https://repositorio.ufrn.br/handle/123456789/32338 |
Resumo: | The objective of this work is obtaining W-30 wt% Cu composite powder from ammonium paratungstate hydrated (APT) and hydrated copper nitrate and investigating the influence of some production process parameters of W- 30 wt% Cu in particles form which results in high sinterability and densification of W-30 wt% Cu composite. To achieve this objective, the powder was obtained by manually mixing the APT and copper nitrate and reducing under a hydrogen atmosphere at 800 °C and then compacting at 500 MPa and sintering in a tubular furnace at 1200 °C for 60 minutes. The obtained materials were characterized by XRD, SEM, EDS, particle size analysis, density and microhardness measurements. The composite powder showed a good homogenization of Cu in W with very fine and agglomerated particles and a mean crystallite size of 25.64 nm. SEM coupled with EDS with mapping analysis revealed a homogeneous distribution of Cu and W in the sintered sample. The composite had a relative density of 96.77% and a microhardness of 523.66 HV. Therefore the method of obtaining the composite powder is feasible to sinter W-30 wt% Cu powder due to a greater dispersion and homogenization of phases and the average particle size |
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Lima, Maria José SantosSilva, Fernando Erick Santos daSouto, Maria Veronilda MacedoMashhadikarimi, MeysamSilva, Ariadne SousaGomes, Uílame UmbelinoSouza, Carlson Pereira de2021-04-28T20:08:01Z2021-04-28T20:08:01Z2017-05-18LIMA, MARIA JOSÉ SANTOS ; SILVA, FERNANDO ERICK SANTOS DA ; SOUTO, MARIA VERONILDA MACEDO ; MASHHADIKARIMI, MEYSAM ; SILVA, ARIADNE SOUSA ; GOMES, UILAME UMBELINO ; SOUZA, Carlson Pereira de . Obtaining and Characterization of W-Cu Composite Powder Produced by Mixing and Sintering of Ammonium Paratungstate (Apt) and Copper Nitrate. MATERIALS RESEARCH, v. 1, p. 1/ Epub may 18-5, 2017. Disponível em: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392017000800097&lng=en&tlng=em. Acesso em: 29 Mar. 2021. https://doi.org/10.1590/1980-5373-mr-2016-10031980-53731516-1439https://repositorio.ufrn.br/handle/123456789/3233810.1590/1980-5373-mr-2016-1003ABM, ABC, ABPolAttribution 3.0 Brazilhttp://creativecommons.org/licenses/by/3.0/br/info:eu-repo/semantics/openAccessComposite W-CuAmmonium ParatungstateCopper NitrateObtaining and characterization of W-Cu composite powder produced by mixing and sintering of Ammonium Paratungstate (Apt) and copper nitrateinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleThe objective of this work is obtaining W-30 wt% Cu composite powder from ammonium paratungstate hydrated (APT) and hydrated copper nitrate and investigating the influence of some production process parameters of W- 30 wt% Cu in particles form which results in high sinterability and densification of W-30 wt% Cu composite. To achieve this objective, the powder was obtained by manually mixing the APT and copper nitrate and reducing under a hydrogen atmosphere at 800 °C and then compacting at 500 MPa and sintering in a tubular furnace at 1200 °C for 60 minutes. The obtained materials were characterized by XRD, SEM, EDS, particle size analysis, density and microhardness measurements. The composite powder showed a good homogenization of Cu in W with very fine and agglomerated particles and a mean crystallite size of 25.64 nm. SEM coupled with EDS with mapping analysis revealed a homogeneous distribution of Cu and W in the sintered sample. The composite had a relative density of 96.77% and a microhardness of 523.66 HV. Therefore the method of obtaining the composite powder is feasible to sinter W-30 wt% Cu powder due to a greater dispersion and homogenization of phases and the average particle sizeengreponame:Repositório Institucional da UFRNinstname:Universidade Federal do Rio Grande do Norte (UFRN)instacron:UFRNORIGINALObtainingCharacterizationWCuComposite_SOUZA_2017.pdfObtainingCharacterizationWCuComposite_SOUZA_2017.pdfapplication/pdf4258015https://repositorio.ufrn.br/bitstream/123456789/32338/1/ObtainingCharacterizationWCuComposite_SOUZA_2017.pdf7f9cab4cda7812920042287af7edab52MD51CC-LICENSElicense_rdflicense_rdfapplication/rdf+xml; charset=utf-8914https://repositorio.ufrn.br/bitstream/123456789/32338/2/license_rdf4d2950bda3d176f570a9f8b328dfbbefMD52LICENSElicense.txtlicense.txttext/plain; charset=utf-81484https://repositorio.ufrn.br/bitstream/123456789/32338/3/license.txte9597aa2854d128fd968be5edc8a28d9MD53TEXTObtainingCharacterizationWCuComposite_SOUZA_2017.pdf.txtObtainingCharacterizationWCuComposite_SOUZA_2017.pdf.txtExtracted texttext/plain15916https://repositorio.ufrn.br/bitstream/123456789/32338/4/ObtainingCharacterizationWCuComposite_SOUZA_2017.pdf.txt38d60a290367816e35b0647828bd7a58MD54THUMBNAILObtainingCharacterizationWCuComposite_SOUZA_2017.pdf.jpgObtainingCharacterizationWCuComposite_SOUZA_2017.pdf.jpgGenerated Thumbnailimage/jpeg1651https://repositorio.ufrn.br/bitstream/123456789/32338/5/ObtainingCharacterizationWCuComposite_SOUZA_2017.pdf.jpgc00158be067439b9b2d49a8f83a1e045MD55123456789/323382021-08-20 11:44:54.982oai:https://repositorio.ufrn.br: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Repositório de PublicaçõesPUBhttp://repositorio.ufrn.br/oai/opendoar:2021-08-20T14:44:54Repositório Institucional da UFRN - Universidade Federal do Rio Grande do Norte (UFRN)false |
dc.title.pt_BR.fl_str_mv |
Obtaining and characterization of W-Cu composite powder produced by mixing and sintering of Ammonium Paratungstate (Apt) and copper nitrate |
title |
Obtaining and characterization of W-Cu composite powder produced by mixing and sintering of Ammonium Paratungstate (Apt) and copper nitrate |
spellingShingle |
Obtaining and characterization of W-Cu composite powder produced by mixing and sintering of Ammonium Paratungstate (Apt) and copper nitrate Lima, Maria José Santos Composite W-Cu Ammonium Paratungstate Copper Nitrate |
title_short |
Obtaining and characterization of W-Cu composite powder produced by mixing and sintering of Ammonium Paratungstate (Apt) and copper nitrate |
title_full |
Obtaining and characterization of W-Cu composite powder produced by mixing and sintering of Ammonium Paratungstate (Apt) and copper nitrate |
title_fullStr |
Obtaining and characterization of W-Cu composite powder produced by mixing and sintering of Ammonium Paratungstate (Apt) and copper nitrate |
title_full_unstemmed |
Obtaining and characterization of W-Cu composite powder produced by mixing and sintering of Ammonium Paratungstate (Apt) and copper nitrate |
title_sort |
Obtaining and characterization of W-Cu composite powder produced by mixing and sintering of Ammonium Paratungstate (Apt) and copper nitrate |
author |
Lima, Maria José Santos |
author_facet |
Lima, Maria José Santos Silva, Fernando Erick Santos da Souto, Maria Veronilda Macedo Mashhadikarimi, Meysam Silva, Ariadne Sousa Gomes, Uílame Umbelino Souza, Carlson Pereira de |
author_role |
author |
author2 |
Silva, Fernando Erick Santos da Souto, Maria Veronilda Macedo Mashhadikarimi, Meysam Silva, Ariadne Sousa Gomes, Uílame Umbelino Souza, Carlson Pereira de |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Lima, Maria José Santos Silva, Fernando Erick Santos da Souto, Maria Veronilda Macedo Mashhadikarimi, Meysam Silva, Ariadne Sousa Gomes, Uílame Umbelino Souza, Carlson Pereira de |
dc.subject.por.fl_str_mv |
Composite W-Cu Ammonium Paratungstate Copper Nitrate |
topic |
Composite W-Cu Ammonium Paratungstate Copper Nitrate |
description |
The objective of this work is obtaining W-30 wt% Cu composite powder from ammonium paratungstate hydrated (APT) and hydrated copper nitrate and investigating the influence of some production process parameters of W- 30 wt% Cu in particles form which results in high sinterability and densification of W-30 wt% Cu composite. To achieve this objective, the powder was obtained by manually mixing the APT and copper nitrate and reducing under a hydrogen atmosphere at 800 °C and then compacting at 500 MPa and sintering in a tubular furnace at 1200 °C for 60 minutes. The obtained materials were characterized by XRD, SEM, EDS, particle size analysis, density and microhardness measurements. The composite powder showed a good homogenization of Cu in W with very fine and agglomerated particles and a mean crystallite size of 25.64 nm. SEM coupled with EDS with mapping analysis revealed a homogeneous distribution of Cu and W in the sintered sample. The composite had a relative density of 96.77% and a microhardness of 523.66 HV. Therefore the method of obtaining the composite powder is feasible to sinter W-30 wt% Cu powder due to a greater dispersion and homogenization of phases and the average particle size |
publishDate |
2017 |
dc.date.issued.fl_str_mv |
2017-05-18 |
dc.date.accessioned.fl_str_mv |
2021-04-28T20:08:01Z |
dc.date.available.fl_str_mv |
2021-04-28T20:08:01Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
LIMA, MARIA JOSÉ SANTOS ; SILVA, FERNANDO ERICK SANTOS DA ; SOUTO, MARIA VERONILDA MACEDO ; MASHHADIKARIMI, MEYSAM ; SILVA, ARIADNE SOUSA ; GOMES, UILAME UMBELINO ; SOUZA, Carlson Pereira de . Obtaining and Characterization of W-Cu Composite Powder Produced by Mixing and Sintering of Ammonium Paratungstate (Apt) and Copper Nitrate. MATERIALS RESEARCH, v. 1, p. 1/ Epub may 18-5, 2017. Disponível em: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392017000800097&lng=en&tlng=em. Acesso em: 29 Mar. 2021. https://doi.org/10.1590/1980-5373-mr-2016-1003 |
dc.identifier.uri.fl_str_mv |
https://repositorio.ufrn.br/handle/123456789/32338 |
dc.identifier.issn.none.fl_str_mv |
1980-5373 1516-1439 |
dc.identifier.doi.none.fl_str_mv |
10.1590/1980-5373-mr-2016-1003 |
identifier_str_mv |
LIMA, MARIA JOSÉ SANTOS ; SILVA, FERNANDO ERICK SANTOS DA ; SOUTO, MARIA VERONILDA MACEDO ; MASHHADIKARIMI, MEYSAM ; SILVA, ARIADNE SOUSA ; GOMES, UILAME UMBELINO ; SOUZA, Carlson Pereira de . Obtaining and Characterization of W-Cu Composite Powder Produced by Mixing and Sintering of Ammonium Paratungstate (Apt) and Copper Nitrate. MATERIALS RESEARCH, v. 1, p. 1/ Epub may 18-5, 2017. Disponível em: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392017000800097&lng=en&tlng=em. Acesso em: 29 Mar. 2021. https://doi.org/10.1590/1980-5373-mr-2016-1003 1980-5373 1516-1439 10.1590/1980-5373-mr-2016-1003 |
url |
https://repositorio.ufrn.br/handle/123456789/32338 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
Attribution 3.0 Brazil http://creativecommons.org/licenses/by/3.0/br/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Attribution 3.0 Brazil http://creativecommons.org/licenses/by/3.0/br/ |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
ABM, ABC, ABPol |
publisher.none.fl_str_mv |
ABM, ABC, ABPol |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da UFRN instname:Universidade Federal do Rio Grande do Norte (UFRN) instacron:UFRN |
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Universidade Federal do Rio Grande do Norte (UFRN) |
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UFRN |
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UFRN |
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Repositório Institucional da UFRN |
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Repositório Institucional da UFRN |
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