Hot-Pressing of (Ti, Mt)(C, N)-Co-Mo2C (Mt=Ta, Nb) powdered cermets synthesized by a mechanically induced self-sustaining reaction

A mechanically induced self-sustaining reaction (MSR) has been successfully employed for manufacturing powdered cermets based on Ti, Ti–Ta and Ti–Nb carbonitrides using Co as the binder phase and Mo2C as the sintering additive. The powders were sintered by hot-pressing, and complete chemical, micros...

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Authors: Chicardi Augusto, Ernesto, Gotor Martínez, Francisco José, Córdoba Gallego, José Manuel, Medri, V., Guicciardi, S., Lascano, Sheila
Format: article
Status:Versión enviada para evaluación y publicación
Publication Date:2016
Country:España
Institution:Universidad de Sevilla (US)
Repository:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/72158
Online Access:https://hdl.handle.net/11441/72158
https://doi.org/10.1016/j.cej.2016.02.007
Access Level:Open access
Keyword:Mechanical milling
Cermets
Hot-Pressing
Mechanical properties
Nanohardness
Titanium carbonitride
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spelling Hot-Pressing of (Ti, Mt)(C, N)-Co-Mo2C (Mt=Ta, Nb) powdered cermets synthesized by a mechanically induced self-sustaining reactionChicardi Augusto, ErnestoGotor Martínez, Francisco JoséCórdoba Gallego, José ManuelMedri, V.Guicciardi, S.Lascano, SheilaMechanical millingCermetsHot-PressingMechanical propertiesNanohardnessTitanium carbonitrideA mechanically induced self-sustaining reaction (MSR) has been successfully employed for manufacturing powdered cermets based on Ti, Ti–Ta and Ti–Nb carbonitrides using Co as the binder phase and Mo2C as the sintering additive. The powders were sintered by hot-pressing, and complete chemical, microstructural and mechanical characterizations were performed on the densified cermets. When elemental Ta, Nb and/or Mo2C were added to the initial raw mixture submitted to the MSR process, smaller ceramic grains were observed after sintering, which suggested that ceramic particle growth was hindered by the presence of Ta, Nb and/or Mo in the host titanium carbonitride structure. Nanoindentation measurements enabled the determination of the hardness of the ceramic and binder phases, and values in the range of 26–29 GPa and 14–16 GPa were found, respectively. The high hardness values of the binder were related to the formation of intermetallic phases.Gobierno de España European Regional Development No. MAT2011- 22981ElsevierIngeniería y Ciencia de los Materiales y del TransporteGobierno de España2016info:eu-repo/semantics/articleinfo:eu-repo/semantics/submittedVersionapplication/pdfapplication/pdfhttps://hdl.handle.net/11441/72158https://doi.org/10.1016/j.cej.2016.02.007reponame:idUS. Depósito de Investigación de la Universidad de Sevillainstname:Universidad de Sevilla (US)InglésChemical Engineering Journal, 292, 51-61.http://dx.doi.org/10.1016/j.cej.2016.02.007info:eu-repo/semantics/openAccessoai:idus.us.es:11441/721582026-06-17T12:51:07Z
dc.title.none.fl_str_mv Hot-Pressing of (Ti, Mt)(C, N)-Co-Mo2C (Mt=Ta, Nb) powdered cermets synthesized by a mechanically induced self-sustaining reaction
title Hot-Pressing of (Ti, Mt)(C, N)-Co-Mo2C (Mt=Ta, Nb) powdered cermets synthesized by a mechanically induced self-sustaining reaction
spellingShingle Hot-Pressing of (Ti, Mt)(C, N)-Co-Mo2C (Mt=Ta, Nb) powdered cermets synthesized by a mechanically induced self-sustaining reaction
Chicardi Augusto, Ernesto
Mechanical milling
Cermets
Hot-Pressing
Mechanical properties
Nanohardness
Titanium carbonitride
title_short Hot-Pressing of (Ti, Mt)(C, N)-Co-Mo2C (Mt=Ta, Nb) powdered cermets synthesized by a mechanically induced self-sustaining reaction
title_full Hot-Pressing of (Ti, Mt)(C, N)-Co-Mo2C (Mt=Ta, Nb) powdered cermets synthesized by a mechanically induced self-sustaining reaction
title_fullStr Hot-Pressing of (Ti, Mt)(C, N)-Co-Mo2C (Mt=Ta, Nb) powdered cermets synthesized by a mechanically induced self-sustaining reaction
title_full_unstemmed Hot-Pressing of (Ti, Mt)(C, N)-Co-Mo2C (Mt=Ta, Nb) powdered cermets synthesized by a mechanically induced self-sustaining reaction
title_sort Hot-Pressing of (Ti, Mt)(C, N)-Co-Mo2C (Mt=Ta, Nb) powdered cermets synthesized by a mechanically induced self-sustaining reaction
dc.creator.none.fl_str_mv Chicardi Augusto, Ernesto
Gotor Martínez, Francisco José
Córdoba Gallego, José Manuel
Medri, V.
Guicciardi, S.
Lascano, Sheila
author Chicardi Augusto, Ernesto
author_facet Chicardi Augusto, Ernesto
Gotor Martínez, Francisco José
Córdoba Gallego, José Manuel
Medri, V.
Guicciardi, S.
Lascano, Sheila
author_role author
author2 Gotor Martínez, Francisco José
Córdoba Gallego, José Manuel
Medri, V.
Guicciardi, S.
Lascano, Sheila
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Ingeniería y Ciencia de los Materiales y del Transporte
Gobierno de España
dc.subject.none.fl_str_mv Mechanical milling
Cermets
Hot-Pressing
Mechanical properties
Nanohardness
Titanium carbonitride
topic Mechanical milling
Cermets
Hot-Pressing
Mechanical properties
Nanohardness
Titanium carbonitride
description A mechanically induced self-sustaining reaction (MSR) has been successfully employed for manufacturing powdered cermets based on Ti, Ti–Ta and Ti–Nb carbonitrides using Co as the binder phase and Mo2C as the sintering additive. The powders were sintered by hot-pressing, and complete chemical, microstructural and mechanical characterizations were performed on the densified cermets. When elemental Ta, Nb and/or Mo2C were added to the initial raw mixture submitted to the MSR process, smaller ceramic grains were observed after sintering, which suggested that ceramic particle growth was hindered by the presence of Ta, Nb and/or Mo in the host titanium carbonitride structure. Nanoindentation measurements enabled the determination of the hardness of the ceramic and binder phases, and values in the range of 26–29 GPa and 14–16 GPa were found, respectively. The high hardness values of the binder were related to the formation of intermetallic phases.
publishDate 2016
dc.date.none.fl_str_mv 2016
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/submittedVersion
format article
status_str submittedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/11441/72158
https://doi.org/10.1016/j.cej.2016.02.007
url https://hdl.handle.net/11441/72158
https://doi.org/10.1016/j.cej.2016.02.007
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Chemical Engineering Journal, 292, 51-61.
http://dx.doi.org/10.1016/j.cej.2016.02.007
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:idUS. Depósito de Investigación de la Universidad de Sevilla
instname:Universidad de Sevilla (US)
instname_str Universidad de Sevilla (US)
reponame_str idUS. Depósito de Investigación de la Universidad de Sevilla
collection idUS. Depósito de Investigación de la Universidad de Sevilla
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.301603

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