Production of nickel matrix composites reinforced with carbide particles by granulation of fine powders and mechanical pressing

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dc.contributor.authorNascimento, Rubens Maribondo do
dc.contributor.authorFernandes, Maria Roseane de Pontes
dc.contributor.authorMartinelli, Antonio Eduardo
dc.contributor.authorKlein, Aloisio Nelmo
dc.contributor.authorHammes, Gisele
dc.contributor.authorBinder, Cristiano
dc.date.accessioned2022-01-17T20:53:28Z
dc.date.available2022-01-17T20:53:28Z
dc.date.issued2017-01
dc.description.resumoPlain nickel and nickel composites containing either TaC or NbC powders were granulated and sintered after conventional mechanical pressing. The granulation parameters were studied using plain nickel powder to evaluate a binder system consisting of paraffin diluted in hexane, but also the suitable size range of the granules obtained. Carbide powders were then wet mixed with nickel and the powder mixtures were granulated using a drum. Flow rate tests were performed and the granules were pressed into pellets, which were dewaxed and sintered. SEM images of the microstructure of the sintered materials were obtained. Green and sintered densities along with Brinell hardness were also evaluated. The results revealed that the concentration of 1.5 wt% of paraffin and granules sieved in the range between 500 and 90 Ī¼m contributed towards the development of dense and uniform microstructures of the sintered composites. Finally, the addition of carbides homogeneously increased hardness to nearly double that of plain nickelpt_BR
dc.identifier.citationFERNANDES, Maria Roseane P.; MARTINELLI, Antonio Eduardo; KLEIN, Aloisio Nelmo; HAMMES, Gisele; BINDER, Cristiano; NASCIMENTO, Rubens M. Production of nickel matrix composites reinforced with carbide particles by granulation of fine powders and mechanical pressing. Powder Technology, [S.L.], v. 305, p. 673-678, jan. 2017. DisponĆ­vel em: https://www.sciencedirect.com/science/article/abs/pii/S003259101630746X?via%3Dihub. Acesso em: 30 mar. 2021. http://dx.doi.org/10.1016/j.powtec.2016.10.053.pt_BR
dc.identifier.doi10.1016/j.powtec.2016.10.053
dc.identifier.issn0032-5910
dc.identifier.issn1873-328X
dc.identifier.urihttps://repositorio.ufrn.br/handle/123456789/45657
dc.languageenpt_BR
dc.publisherElsevierpt_BR
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Brazil*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/br/*
dc.subjectPowder granulationpt_BR
dc.subjectNickelpt_BR
dc.subjectTantalum carbidept_BR
dc.subjectNiobium carbidept_BR
dc.subjectMetal matrix compositept_BR
dc.titleProduction of nickel matrix composites reinforced with carbide particles by granulation of fine powders and mechanical pressingpt_BR
dc.typearticlept_BR

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