Core-shell Ni-Ti(C,N) structures fabricated by precipitation of based-Ni nanoparticles on TiCN suspensions

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dc.contributor.author Dios Pérez, Miguel de
dc.contributor.author González Granados, Zoilo
dc.contributor.author Gordo Odériz, Elena
dc.contributor.author Ferrari Fernández, Begoña
dc.date.accessioned 2018-05-16T10:05:11Z
dc.date.available 2018-05-16T10:05:11Z
dc.date.issued 2015
dc.identifier.bibliographicCitation Euro PM2015 Proceedings: hard materials, alternative binders. Shrewsbury (U.K.): European Powder Metallurgy Association (EPMA), 2015
dc.identifier.isbn 978-1-899072-47-7 (USB)
dc.identifier.uri http://hdl.handle.net/10016/26847
dc.description Proceedings of: European Congress and Exhibition on Powder Metallurgy (Euro PM2015 Congress & Exhibition), Reims (France), 4-7 September 2015
dc.description.abstract Ti(C,N)-based cermets are currently used in high-speed cutting tools industry due to their high thermal stability. In previous works, Fe was proposed as metal matrix, however the use of iron as continuous matrix strongly affects the processing due to the low wetting capability of molten Fe with the reinforcement phase, Ti(C,N). To solve this problem the use of alloys such as FeNi has been proposed, where Ni improves the wettability between the ceramic and the metal phases. This work proposes a bottom-up approach to build the cermet microstructure through the synthesis of metal nanoparticles on the surface of Ti(C,N) micrometric particles, creating core-shell Ti(C,N)-Ni structures. For that purpose, synthesis parameters to obtain Ni nanoparticles were optimized and then, a one-pot synthesis procedure was tested to obtain core-shell Ti(C,N)-Ni particles by the chemical precipitation of Ni nanoparticles onto the surface of micronic Ti(C,N) particles previously stabilized in an aqueous suspension. Nickel nanoparticles and subsequent core-shell were characterized by measuring the particle size by Dynamic Light Scattering (DLS), X-Ray Diffraction (XRD), field emission scanning electron microscopy (FE-SEM).
dc.description.sponsorship The authors acknowledge the support of the projects S2013/MIT-2862 and MAT2012-38650-02-01, MAT2012-38650-C02-02. M. de Dios acknowledges MINECO through the grant FPI-2013 and Dr. Z González acknowledges to MINECO through the grant PTQ-13-05985.
dc.format.extent 6
dc.format.mimetype application/pdf
dc.language.iso eng
dc.publisher European Powder Metallurgy Association (EPMA)
dc.relation.ispartof http://hdl.handle.net/10016/27083
dc.rights © 2015 European Powder Metallurgy Association
dc.subject.other Core-shell
dc.subject.other Ti(C,N)-based cermets
dc.subject.other Nanoparticles
dc.subject.other Chemical precipitation
dc.subject.other Suspensions
dc.title Core-shell Ni-Ti(C,N) structures fabricated by precipitation of based-Ni nanoparticles on TiCN suspensions
dc.type conferenceObject
dc.relation.publisherversion https://www.epma.com/publications/euro-pm-proceedings/product/ep150327
dc.subject.eciencia Materiales
dc.rights.accessRights openAccess
dc.relation.projectID Comunidad de Madrid. S2013/MIT-2862, MULTIMAT-CHALLENGE
dc.relation.projectID Gobierno de España. MAT2012-38650-02-01
dc.relation.projectID Gobierno de España. MAT2012-38650-C02-02
dc.relation.projectID Gobierno de España. FPI-2013
dc.relation.projectID Gobierno de España. PTQ-13-05985
dc.type.version acceptedVersion
dc.relation.eventdate 2015, 4-7 September
dc.relation.eventplace Reims (Francia)
dc.relation.eventtitle European Congress and Exhibition on Powder Metallurgy (Euro PM2015 Congress & Exhibition)
dc.relation.eventtype proceeding
dc.identifier.publicationtitle Euro PM2015 Proceedings: hard materials, alternative binders
dc.identifier.uxxi CC/0000026231
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