Self-lubricating Cu-MWCNT coatings deposited from an ecofriendly glutamate-based electrolyte

Self-lubricating coatings have been studied for a long time due to their convenience compared to systems which need periodic lubrication. For this reason, Cu-CNT composite coatings with high wear resistance and low coeﬃcient of friction were obtained by electrodeposition from an ecofriendly alkaline...

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Autores principales:	Bengoa, Leandro Nicolás, Seré, Pablo Ricardo, Pary, Paola, Conconi, María Susana, Folgueiras, José, Morel, Eneas, Torga, Jorge, Egli, Walter Alfredo
Formato:	Articulo
Lenguaje:	Inglés
Publicado:	2020
Materias:	Ingeniería Copper Carbon nanotubes Composite Friction Tribology
Acceso en línea:	http://sedici.unlp.edu.ar/handle/10915/92291
Aporte de:	SEDICI (UNLP) de Universidad Nacional de La Plata

id	I19-R120-10915-92291
record_format	dspace
institution	Universidad Nacional de La Plata
institution_str	I-19
repository_str	R-120
collection	SEDICI (UNLP)
language	Inglés
topic	Ingeniería Copper Carbon nanotubes Composite Friction Tribology
spellingShingle	Ingeniería Copper Carbon nanotubes Composite Friction Tribology Bengoa, Leandro Nicolás Seré, Pablo Ricardo Pary, Paola Conconi, María Susana Folgueiras, José Morel, Eneas Torga, Jorge Egli, Walter Alfredo Self-lubricating Cu-MWCNT coatings deposited from an ecofriendly glutamate-based electrolyte
topic_facet	Ingeniería Copper Carbon nanotubes Composite Friction Tribology
description	Self-lubricating coatings have been studied for a long time due to their convenience compared to systems which need periodic lubrication. For this reason, Cu-CNT composite coatings with high wear resistance and low coeﬃcient of friction were obtained by electrodeposition from an ecofriendly alkaline glutamate-based electrolyte. Deposition experiments were performed at various experimental conditions in the presence of lowfrequency ultrasound agitation to ensure particle dispersion and enhance their incorporation in the Cu matrix. Moreover, the eﬀect of 2-Butyne-1,4-diol (an additive use in glutamate-based formulations) on coatings mechanical and tribological properties was assessed. Both pure Cu and Cu-CNT were obtained under all the experimental conditions considered and later characterized by SEM and XRD. Finally, pin-on disk tests were performed to estimate the coeﬃcient of friction and determine the wear resistance. The results showed that incorporation of CNT to the copper matrix led to an improvement of the tribological performance of pure Cu, regardless of deposition parameters. Furthermore, it was found that 2-Butyne-1,4-diol had a strong inﬂuence on deposit microhardness and tribological performance, as a result of the changes in microstructure induced by this additive which promoted the development of a (111) texture. Likewise, the incorporation of particles to the Cu matrix promoted changes in surface morphology as well as in the preferred crystalline orientation, promoting crystal growth along the [311] direction. The results indicate that this simple and cheap methodology is suitable for fabrication of self-lubricating coatings.
format	Articulo Articulo
author	Bengoa, Leandro Nicolás Seré, Pablo Ricardo Pary, Paola Conconi, María Susana Folgueiras, José Morel, Eneas Torga, Jorge Egli, Walter Alfredo
author_facet	Bengoa, Leandro Nicolás Seré, Pablo Ricardo Pary, Paola Conconi, María Susana Folgueiras, José Morel, Eneas Torga, Jorge Egli, Walter Alfredo
author_sort	Bengoa, Leandro Nicolás
title	Self-lubricating Cu-MWCNT coatings deposited from an ecofriendly glutamate-based electrolyte
title_short	Self-lubricating Cu-MWCNT coatings deposited from an ecofriendly glutamate-based electrolyte
title_full	Self-lubricating Cu-MWCNT coatings deposited from an ecofriendly glutamate-based electrolyte
title_fullStr	Self-lubricating Cu-MWCNT coatings deposited from an ecofriendly glutamate-based electrolyte
title_full_unstemmed	Self-lubricating Cu-MWCNT coatings deposited from an ecofriendly glutamate-based electrolyte
title_sort	self-lubricating cu-mwcnt coatings deposited from an ecofriendly glutamate-based electrolyte
publishDate	2020
url	http://sedici.unlp.edu.ar/handle/10915/92291
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Self-lubricating Cu-MWCNT coatings deposited from an ecofriendly glutamate-based electrolyte

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