dc.creator | Bobaru, Stefania | es |
dc.creator | Rico-Gavira, Víctor Joaquín | es |
dc.creator | García-Valenzuela, Aurelio | es |
dc.creator | López Santos, Carmen | es |
dc.creator | González-Elipe, Agustín R. | es |
dc.date.accessioned | 2022-12-21T09:51:09Z | |
dc.date.available | 2022-12-21T09:51:09Z | |
dc.date.issued | 2022-06 | |
dc.identifier.citation | Bobaru, S., Rico-Gavira, V.J., García-Valenzuela, A., López Santos, C. y González-Elipe, A.R. (2022). Electron beam evaporated vs. magnetron sputtered nanocolumnar porous stainless steel: Corrosion resistance, wetting behavior and anti-bacterial activity. Materials Today Communications, 31 (103266). https://doi.org/10.1016/j.mtcomm.2022.103266. | |
dc.identifier.issn | 2352-4928 | es |
dc.identifier.uri | https://hdl.handle.net/11441/140715 | |
dc.description.abstract | Stainless steel (SS), widely used because of its outstanding corrosion protection properties, does not possess any
particular anti-stain or anti-bacterial activity as required for household and sanitary applications. This work
reports the fabrication of SS thin films that, keeping a similar corrosion resistance than the bulk material, presents hydrophobicity and anti-bacterial activity. These thin films are prepared at ambient temperature by
physical vapor deposition (PVD), either electron beam evaporation (EBE) or magnetron sputtering (MS), at
oblique angles (OAD). According to their scanning electron microcopy and atomic force microscopy analysis, the
microstructure of the OAD-SS thin films consisted of tilted and separated nanocolumns defining a surface topology that, characterized by a high percentage of void space, varied with the deposition conditions and procedure, either EBE or MS. It has been shown that particularly the nanocolumnar MS-OAD thin films preserved
and even improved the high corrosion resistance of compact SS, as determined by electrochemical analysis.
Besides, all OAD-SS thin films depict hydrophobicity and a high antibacterial activity. These features, particularly remarkable for the MS-OAD thin films, have been related with their tip-like termination at the surface and
the existence of large void spaces separating the nanocolumns. This topology appears to affect negatively the
bacteria’s deployment onto the surface and therefore the survival rate. Differences in the corrosion and antibacterial performance between EBE and MS-OAD thin films have been related with the specificities of these two
PVD methods of thin film preparation. A relatively high abrasion resistance, as determined by abrasion tests,
supports the use of MS-OAD thin films for the protection of commodity materials. | es |
dc.format | application/pdf | es |
dc.format.extent | 10 p. | es |
dc.language.iso | eng | es |
dc.publisher | Elsevier | es |
dc.relation.ispartof | Materials Today Communications, 31 (103266). | |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.subject | Stainless steel coatings | es |
dc.subject | Nanocolumnar thin films | es |
dc.subject | Wetting | es |
dc.subject | Corrosion | es |
dc.subject | Anti-bacterial activity | es |
dc.subject | Oblique angle deposition | es |
dc.subject | MS | es |
dc.subject | Abrasion | es |
dc.title | Electron beam evaporated vs. magnetron sputtered nanocolumnar porous stainless steel: Corrosion resistance, wetting behavior and anti-bacterial activity | es |
dc.type | info:eu-repo/semantics/article | es |
dcterms.identifier | https://ror.org/03yxnpp24 | |
dc.type.version | info:eu-repo/semantics/publishedVersion | es |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es |
dc.contributor.affiliation | Universidad de Sevilla. Departamento de Física Aplicada I | es |
dc.relation.projectID | PID2019-110430GB-C21 | es |
dc.relation.projectID | PID2019-109603RA-I0 | es |
dc.relation.projectID | PID2020-112620GB-I00 | es |
dc.relation.projectID | EU H2020 899352 | es |
dc.relation.publisherversion | https://www.sciencedirect.com/science/article/pii/S2352492822001416 | es |
dc.identifier.doi | 10.1016/j.mtcomm.2022.103266 | es |
dc.contributor.group | Universidad de Sevilla. FQM196: Nanotecnología en Superficies y Plasma | es |
dc.journaltitle | Materials Today Communications | es |
dc.publication.volumen | 31 | es |
dc.publication.issue | 103266 | es |
dc.contributor.funder | FEDER program and AEI-MICINN PID2019-110430GB-C21 | es |
dc.contributor.funder | FEDER program and AEI-MICINN PID2019-109603RA-I0 | es |
dc.contributor.funder | FEDER program and AEI-MICINN PID2020-112620GB-I00 | es |
dc.contributor.funder | EU H2020 Program (FETOPEN-01-2018-2019-2020 - SOUNDofICE) under the grant agreements 899352 | es |