Chemical precipitation of nickel nanoparticles on Ti(C,N) suspensions focused on cermet processing

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Show simple item record Dios Pérez, Miguel de González Granados, Zoilo Gordo Odériz, Elena Ferrari, Begoña 2016-09-02T07:46:55Z 2018-08-22T22:00:06Z 2016-08-21
dc.identifier.bibliographicCitation International Journal of Refractory Metals and Hard Materials
dc.identifier.issn 0263-4368
dc.description.abstract Ti(C,N)-based cermets are currently used in high speed cutting tools industry due to its 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 (NPs) on the surface of Ti(C,N) micrometric particles, creating Ti(C,N)-Ni core-shell structures. For that purpose, the in-situ synthesis of Ni NPs through the chemical reduction of a Ni precursor onto the surface of micrometric Ti(C,N) particles, previously stabilized in an aqueous suspension, was proposed. Core-shell structures were characterized by X-Ray Diffraction (XRD), scanning electron microscopy (SEM), field emission scanning electron microscopy (FE-SEM), scanning transmission electron microscopy (STEM), high resolution scanning electron microscopy (HRTEM), energy-dispersive X-Ray spectroscopy (EDX) and Raman Spectroscopy.
dc.description.sponsorship The authors acknowledge the support of the projects S2013/MIT 2862 MAT2015 70780 C4 1 P and MAT2015 70780 C4 2 P. M. De Dios acknowledges MINECO through the grant BES 2013 065760 and Dr. Z González acknowledges to MINECO through the grant PTQ 13 05985.
dc.format.extent 8
dc.format.mimetype application/pdf
dc.language.iso eng
dc.publisher Elsevier
dc.rights © Elsevier 2016
dc.rights Atribución-NoComercial-SinDerivadas 3.0 España
dc.title Chemical precipitation of nickel nanoparticles on Ti(C,N) suspensions focused on cermet processing
dc.type article
dc.subject.eciencia Materiales
dc.rights.accessRights openAccess
dc.relation.projectID Gobierno de España. MAT2015-70780-C4-1-P
dc.relation.projectID Gobierno de España. MAT2015-70780-C4-2-P
dc.relation.projectID Gobierno de España. PTQ-13-05985
dc.relation.projectID Gobierno de España. BES-2013-065760
dc.relation.projectID Comunidad de Madrid. S2013/MIT-2862/MULTIMAT-CHALLENGE
dc.type.version acceptedVersion
dc.identifier.publicationtitle International journal of refractory metals and hard materials
dc.identifier.uxxi AR/0000018030
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