Cr-based sputtered decorative coatings for automotive industry

Bibliographic Details
Main Author: Carneiro, Edgar Manuel Neto
Publication Date: 2021
Other Authors: Parreira, Nuno M. G., Vuchkov, Todor, Cavaleiro, Albano, Ferreira, Jorge, Andritschky, M., Carvalho, Sandra
Format: Article
Language: eng
Source: Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
Download full: https://hdl.handle.net/1822/75708
Summary: The present work aims to study the impact of O and N addition on Cr-sputtered coatings on plastic (polycarbonate, PC) used in automobile parts, as a promisor alternative for auto part metallization, while eliminating the usage of toxic hexavalent chromium. The coatings were deposited using DC magnetron sputtering from a single pure Cr target in a reactive atmosphere (N<sub>2</sub> and/or O<sub>2</sub>). The deposition of the coatings was performed maintaining the total pressure constant and close to 1 Pa by tuning Ar pressure while reactive gases were added. The target current density was kept at <i>J<sub>W</sub></i> = 20 mA·cm<sup>−2</sup>. Structural characterization revealed a mixture of α-Cr, δ-Cr, β-Cr<sub>2</sub>N, and CrN crystalline structures as well as amorphous oxides. The coating hardness ranged from 9 GPa for the CrON coating to 15 GPa for the CrN coating. All deposited coatings showed a particularly good interface adhesion; adjusting the amount of O and N made it possible to tune the optical properties of the Cr-based coatings as desired. The promising results open future industrialization of sputtered Cr-based coatings for automotive industries.
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spelling Cr-based sputtered decorative coatings for automotive industryChromium coatingsReactive sputteringDecorative coatingsCoatings on plasticsScience & TechnologyThe present work aims to study the impact of O and N addition on Cr-sputtered coatings on plastic (polycarbonate, PC) used in automobile parts, as a promisor alternative for auto part metallization, while eliminating the usage of toxic hexavalent chromium. The coatings were deposited using DC magnetron sputtering from a single pure Cr target in a reactive atmosphere (N<sub>2</sub> and/or O<sub>2</sub>). The deposition of the coatings was performed maintaining the total pressure constant and close to 1 Pa by tuning Ar pressure while reactive gases were added. The target current density was kept at <i>J<sub>W</sub></i> = 20 mA·cm<sup>−2</sup>. Structural characterization revealed a mixture of α-Cr, δ-Cr, β-Cr<sub>2</sub>N, and CrN crystalline structures as well as amorphous oxides. The coating hardness ranged from 9 GPa for the CrON coating to 15 GPa for the CrN coating. All deposited coatings showed a particularly good interface adhesion; adjusting the amount of O and N made it possible to tune the optical properties of the Cr-based coatings as desired. The promising results open future industrialization of sputtered Cr-based coatings for automotive industries.This work was supported by COMPETE 2020 a Portuguese and European Union initiative through the Project POCI-01-0247-FEDER-042785, acronym “GREENCoat”. This research was sponsored by Norte2020, through European Social Fund (FSE), under the National Doctoral Program in “Surfaces Engineering and Protection”, NORTE-08-5369-FSE-000047. This work was supported by the Portuguese Foundation for Science and Technology (FCT) in the framework of Strategic Funding (co-financed via UIDB/00285/2020 and UIDB/04650/2020).Multidisciplinary Digital Publishing Institute (MDPI)Universidade do MinhoCarneiro, Edgar Manuel NetoParreira, Nuno M. G.Vuchkov, TodorCavaleiro, AlbanoFerreira, JorgeAndritschky, M.Carvalho, Sandra2021-09-242021-09-24T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/1822/75708engCarneiro, E.; Parreira, N.M.G.; Vuchkov, T.; Cavaleiro, A.; Ferreira, J.; Andritschky, M.; Carvalho, S. Cr-Based Sputtered Decorative Coatings for Automotive Industry. Materials 2021, 14, 5527. https://doi.org/10.3390/ma141955271996-194410.3390/ma141955275527https://www.mdpi.com/1996-1944/14/19/5527info:eu-repo/semantics/openAccessreponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiainstacron:RCAAP2024-05-11T05:09:12Zoai:repositorium.sdum.uminho.pt:1822/75708Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireinfo@rcaap.ptopendoar:https://opendoar.ac.uk/repository/71602025-05-28T15:09:24.319219Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiafalse
dc.title.none.fl_str_mv Cr-based sputtered decorative coatings for automotive industry
title Cr-based sputtered decorative coatings for automotive industry
spellingShingle Cr-based sputtered decorative coatings for automotive industry
Carneiro, Edgar Manuel Neto
Chromium coatings
Reactive sputtering
Decorative coatings
Coatings on plastics
Science & Technology
title_short Cr-based sputtered decorative coatings for automotive industry
title_full Cr-based sputtered decorative coatings for automotive industry
title_fullStr Cr-based sputtered decorative coatings for automotive industry
title_full_unstemmed Cr-based sputtered decorative coatings for automotive industry
title_sort Cr-based sputtered decorative coatings for automotive industry
author Carneiro, Edgar Manuel Neto
author_facet Carneiro, Edgar Manuel Neto
Parreira, Nuno M. G.
Vuchkov, Todor
Cavaleiro, Albano
Ferreira, Jorge
Andritschky, M.
Carvalho, Sandra
author_role author
author2 Parreira, Nuno M. G.
Vuchkov, Todor
Cavaleiro, Albano
Ferreira, Jorge
Andritschky, M.
Carvalho, Sandra
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Carneiro, Edgar Manuel Neto
Parreira, Nuno M. G.
Vuchkov, Todor
Cavaleiro, Albano
Ferreira, Jorge
Andritschky, M.
Carvalho, Sandra
dc.subject.por.fl_str_mv Chromium coatings
Reactive sputtering
Decorative coatings
Coatings on plastics
Science & Technology
topic Chromium coatings
Reactive sputtering
Decorative coatings
Coatings on plastics
Science & Technology
description The present work aims to study the impact of O and N addition on Cr-sputtered coatings on plastic (polycarbonate, PC) used in automobile parts, as a promisor alternative for auto part metallization, while eliminating the usage of toxic hexavalent chromium. The coatings were deposited using DC magnetron sputtering from a single pure Cr target in a reactive atmosphere (N<sub>2</sub> and/or O<sub>2</sub>). The deposition of the coatings was performed maintaining the total pressure constant and close to 1 Pa by tuning Ar pressure while reactive gases were added. The target current density was kept at <i>J<sub>W</sub></i> = 20 mA·cm<sup>−2</sup>. Structural characterization revealed a mixture of α-Cr, δ-Cr, β-Cr<sub>2</sub>N, and CrN crystalline structures as well as amorphous oxides. The coating hardness ranged from 9 GPa for the CrON coating to 15 GPa for the CrN coating. All deposited coatings showed a particularly good interface adhesion; adjusting the amount of O and N made it possible to tune the optical properties of the Cr-based coatings as desired. The promising results open future industrialization of sputtered Cr-based coatings for automotive industries.
publishDate 2021
dc.date.none.fl_str_mv 2021-09-24
2021-09-24T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://hdl.handle.net/1822/75708
url https://hdl.handle.net/1822/75708
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Carneiro, E.; Parreira, N.M.G.; Vuchkov, T.; Cavaleiro, A.; Ferreira, J.; Andritschky, M.; Carvalho, S. Cr-Based Sputtered Decorative Coatings for Automotive Industry. Materials 2021, 14, 5527. https://doi.org/10.3390/ma14195527
1996-1944
10.3390/ma14195527
5527
https://www.mdpi.com/1996-1944/14/19/5527
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Multidisciplinary Digital Publishing Institute (MDPI)
publisher.none.fl_str_mv Multidisciplinary Digital Publishing Institute (MDPI)
dc.source.none.fl_str_mv reponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
instacron:RCAAP
instname_str FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
instacron_str RCAAP
institution RCAAP
reponame_str Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
collection Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
repository.name.fl_str_mv Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
repository.mail.fl_str_mv info@rcaap.pt
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