Synthesis and Multi Scale Tribological Behavior of WC-Co/Nanodiamond Nanocomposites

Abstract Nanodiamonds (ND) present a unique combination of desirable mechanical, functional, and chemical characteristics that are ideally suited for reinforcing and enhancing the wear resistance of carbide based materials. Tungsten carbide cobalt (WC-Co) matrix nanocomposites reinforced with varyin...

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Autores principales:	Andy Nieto, Lin Jiang, Jaekang Kim, Dae-Eun Kim, Julie M. Schoenung
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/eef12abdf456496cbdb1b7545942eb9b
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spelling	oai:doaj.org-article:eef12abdf456496cbdb1b7545942eb9b2021-12-02T12:32:52ZSynthesis and Multi Scale Tribological Behavior of WC-Co/Nanodiamond Nanocomposites10.1038/s41598-017-07324-32045-2322https://doaj.org/article/eef12abdf456496cbdb1b7545942eb9b2017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-07324-3https://doaj.org/toc/2045-2322Abstract Nanodiamonds (ND) present a unique combination of desirable mechanical, functional, and chemical characteristics that are ideally suited for reinforcing and enhancing the wear resistance of carbide based materials. Tungsten carbide cobalt (WC-Co) matrix nanocomposites reinforced with varying amounts of ND (2 – 10 vol.%) were synthesized here by spark plasma sintering. The rapid thermal consolidation route enabled attainment of dense samples with a significant retention of the metastable diamond phase. NDs affected the microstructural evolution, chemistry, and mechanical properties of WC-Co. Macroscale reciprocating pin-on-disk tests were conducted to assess wear behavior under conditions relevant to service environments, e.g., high cycles and high contact pressure. Microscale tribological properties were assessed using microscratch tests in order to investigate the intrinsic effects of ND on the localized mechanical and tribological response of WC-Co-ND composites. The incorporation of 10 vol.% ND enhanced wear resistance at both the micro- and macroscale, by 28% and 35%, respectively.Andy NietoLin JiangJaekang KimDae-Eun KimJulie M. SchoenungNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-11 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Andy Nieto Lin Jiang Jaekang Kim Dae-Eun Kim Julie M. Schoenung Synthesis and Multi Scale Tribological Behavior of WC-Co/Nanodiamond Nanocomposites
description	Abstract Nanodiamonds (ND) present a unique combination of desirable mechanical, functional, and chemical characteristics that are ideally suited for reinforcing and enhancing the wear resistance of carbide based materials. Tungsten carbide cobalt (WC-Co) matrix nanocomposites reinforced with varying amounts of ND (2 – 10 vol.%) were synthesized here by spark plasma sintering. The rapid thermal consolidation route enabled attainment of dense samples with a significant retention of the metastable diamond phase. NDs affected the microstructural evolution, chemistry, and mechanical properties of WC-Co. Macroscale reciprocating pin-on-disk tests were conducted to assess wear behavior under conditions relevant to service environments, e.g., high cycles and high contact pressure. Microscale tribological properties were assessed using microscratch tests in order to investigate the intrinsic effects of ND on the localized mechanical and tribological response of WC-Co-ND composites. The incorporation of 10 vol.% ND enhanced wear resistance at both the micro- and macroscale, by 28% and 35%, respectively.
format	article
author	Andy Nieto Lin Jiang Jaekang Kim Dae-Eun Kim Julie M. Schoenung
author_facet	Andy Nieto Lin Jiang Jaekang Kim Dae-Eun Kim Julie M. Schoenung
author_sort	Andy Nieto
title	Synthesis and Multi Scale Tribological Behavior of WC-Co/Nanodiamond Nanocomposites
title_short	Synthesis and Multi Scale Tribological Behavior of WC-Co/Nanodiamond Nanocomposites
title_full	Synthesis and Multi Scale Tribological Behavior of WC-Co/Nanodiamond Nanocomposites
title_fullStr	Synthesis and Multi Scale Tribological Behavior of WC-Co/Nanodiamond Nanocomposites
title_full_unstemmed	Synthesis and Multi Scale Tribological Behavior of WC-Co/Nanodiamond Nanocomposites
title_sort	synthesis and multi scale tribological behavior of wc-co/nanodiamond nanocomposites
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/eef12abdf456496cbdb1b7545942eb9b
work_keys_str_mv	AT andynieto synthesisandmultiscaletribologicalbehaviorofwcconanodiamondnanocomposites AT linjiang synthesisandmultiscaletribologicalbehaviorofwcconanodiamondnanocomposites AT jaekangkim synthesisandmultiscaletribologicalbehaviorofwcconanodiamondnanocomposites AT daeeunkim synthesisandmultiscaletribologicalbehaviorofwcconanodiamondnanocomposites AT juliemschoenung synthesisandmultiscaletribologicalbehaviorofwcconanodiamondnanocomposites
_version_	1718393954101100544

Synthesis and Multi Scale Tribological Behavior of WC-Co/Nanodiamond Nanocomposites

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