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https://hdl.handle.net/1822/75708
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Campo DC | Valor | Idioma |
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dc.contributor.author | Carneiro, Edgar Manuel Neto | por |
dc.contributor.author | Parreira, Nuno M. G. | por |
dc.contributor.author | Vuchkov, Todor | por |
dc.contributor.author | Cavaleiro, Albano | por |
dc.contributor.author | Ferreira, Jorge | por |
dc.contributor.author | Andritschky, M. | por |
dc.contributor.author | Carvalho, Sandra | por |
dc.date.accessioned | 2022-01-27T10:27:26Z | - |
dc.date.available | 2022-01-27T10:27:26Z | - |
dc.date.issued | 2021-09-24 | - |
dc.identifier.citation | 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 | por |
dc.identifier.issn | 1996-1944 | - |
dc.identifier.uri | https://hdl.handle.net/1822/75708 | - |
dc.description.abstract | 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. | por |
dc.description.sponsorship | 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). | por |
dc.language.iso | eng | por |
dc.publisher | Multidisciplinary Digital Publishing Institute (MDPI) | por |
dc.relation | UIDB/00285/2020 | por |
dc.relation | UIDB/04650/2020 | por |
dc.rights | openAccess | por |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | por |
dc.subject | Chromium coatings | por |
dc.subject | Reactive sputtering | por |
dc.subject | Decorative coatings | por |
dc.subject | Coatings on plastics | por |
dc.title | Cr-based sputtered decorative coatings for automotive industry | por |
dc.type | article | por |
dc.peerreviewed | yes | por |
dc.relation.publisherversion | https://www.mdpi.com/1996-1944/14/19/5527 | por |
oaire.citationStartPage | 1 | por |
oaire.citationEndPage | 18 | por |
oaire.citationIssue | 19 | por |
oaire.citationVolume | 14 | por |
dc.date.updated | 2021-10-12T14:17:49Z | - |
dc.identifier.doi | 10.3390/ma14195527 | por |
dc.subject.wos | Science & Technology | por |
sdum.journal | Materials | por |
oaire.version | VoR | por |
dc.identifier.articlenumber | 5527 | por |
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materials-14-05527-v3.pdf | 3,62 MB | Adobe PDF | Ver/Abrir |
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