Carbon based DLC films : influence of the processing parameters on the structure and properties

Hydrogenated carbon-based films, such as DLC (“Diamond Like Carbon”), have interesting properties such as excellent tribological behavior, low friction coefficient, high superficial hardness and good wear resistance; they are chemically inert and highly corrosion resistant. They are deposited by mea...

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Detalles Bibliográficos
Autores principales: Delfin, Francisco Andrés, Brühl, Sonia Patricia, Forsich, Christian, Heim, Daniel
Formato: Artículo publisherVersion info:ar-repo/semantics/art??culo
Lenguaje:Inglés
Publicado: 2020
Materias:
Protective coatings
PACVD
DLC
Surface defects
Acceso en línea:http://www.scielo.br/scielo.php?script=sci_abstract&pid=S1517-70762018000200469&lng=en&nrm=iso
http://hdl.handle.net/20.500.12272/4628
http://dx.doi.org/10.1590/s1517-707620180002.0395
Aporte de:
RIA - Repositorio Institucional Abierto (UTN) de Universidad Tecnológica Nacional
id I68-R174-20.500.12272-4628
record_format dspace
institution Universidad Tecnológica Nacional
institution_str I-68
repository_str R-174
collection RIA - Repositorio Institucional Abierto (UTN)
language Inglés
topic Protective coatings
PACVD
DLC
Surface defects
spellingShingle Protective coatings
PACVD
DLC
Surface defects
Delfin, Francisco Andrés
Brühl, Sonia Patricia
Forsich, Christian
Heim, Daniel
Carbon based DLC films : influence of the processing parameters on the structure and properties
topic_facet Protective coatings
PACVD
DLC
Surface defects
description Hydrogenated carbon-based films, such as DLC (“Diamond Like Carbon”), have interesting properties such as excellent tribological behavior, low friction coefficient, high superficial hardness and good wear resistance; they are chemically inert and highly corrosion resistant. They are deposited by means of PACVD (plasma-assisted chemical vapor deposition) with variable film thickness. The load carrying capacity grows with the thickness, so it is possible to deposit thick films on “soft” steels (e.g. low alloyed steels). When increasing coating thickness, surface defects are generated during the deposition process compromising their excellent properties. In this work, different metal substrates have been used to compare adhesion and quantify superficial defects: AISI 316L, DIN 42CrMo4 (AISI 4140) and Böhler K110 (AISI D2). The films were deposited at different temperatures, changing the silicon content and the coating thickness. The samples were placed in the furnace on different positions (standing, lying or up-side down). The films were analyzed with optical and electron microscopy, 3D topography profilometer, and they were tested under sliding wear conditions. Friction coefficient and wear volume were measured, with an average friction coefficient which resulted below 0.05. A higher amount of surface defects was obtained on lying samples compared to the ones up-side down. The quantity of defects increased with the thickness of the coating and decreased with the temperature. The geometry and the growth mechanism of the defects were analyzed.
format Artículo
publisherVersion
info:ar-repo/semantics/art??culo
author Delfin, Francisco Andrés
Brühl, Sonia Patricia
Forsich, Christian
Heim, Daniel
author_facet Delfin, Francisco Andrés
Brühl, Sonia Patricia
Forsich, Christian
Heim, Daniel
author_sort Delfin, Francisco Andrés
title Carbon based DLC films : influence of the processing parameters on the structure and properties
title_short Carbon based DLC films : influence of the processing parameters on the structure and properties
title_full Carbon based DLC films : influence of the processing parameters on the structure and properties
title_fullStr Carbon based DLC films : influence of the processing parameters on the structure and properties
title_full_unstemmed Carbon based DLC films : influence of the processing parameters on the structure and properties
title_sort carbon based dlc films : influence of the processing parameters on the structure and properties
publishDate 2020
url http://www.scielo.br/scielo.php?script=sci_abstract&pid=S1517-70762018000200469&lng=en&nrm=iso
http://hdl.handle.net/20.500.12272/4628
http://dx.doi.org/10.1590/s1517-707620180002.0395
work_keys_str_mv AT delfinfranciscoandres carbonbaseddlcfilmsinfluenceoftheprocessingparametersonthestructureandproperties
AT bruhlsoniapatricia carbonbaseddlcfilmsinfluenceoftheprocessingparametersonthestructureandproperties
AT forsichchristian carbonbaseddlcfilmsinfluenceoftheprocessingparametersonthestructureandproperties
AT heimdaniel carbonbaseddlcfilmsinfluenceoftheprocessingparametersonthestructureandproperties
bdutipo_str Repositorios
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