Obtaining and characterization of W-Cu composite powder produced by mixing and sintering of Ammonium Paratungstate (Apt) and copper nitrate

Detalhes bibliográficos
Autor(a) principal: Lima, Maria José Santos
Data de Publicação: 2017
Outros Autores: Silva, Fernando Erick Santos da, Souto, Maria Veronilda Macedo, Mashhadikarimi, Meysam, Silva, Ariadne Sousa, Gomes, Uílame Umbelino, Souza, Carlson Pereira de
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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spelling 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
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dc.publisher.none.fl_str_mv ABM, ABC, ABPol
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