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Microstructure, Mechanical, and Tribological Properties of Mo2N/Ag-SiNx Nanomultilayers with Varying Modulation Periods

2025-09-15Artigo de investigação Acesso aberto
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datacite.subject.fosEngenharia e Tecnologia::Engenharia Mecânica
datacite.subject.sdg09:Indústria, Inovação e Infraestruturas
dc.contributor.authorFernandes, Filipe
dc.contributor.authorLuan, Jing
dc.contributor.authorWang, Lei
dc.contributor.authorDong, Songtao
dc.contributor.authorFerreira, Fábio
dc.contributor.authorMo, Changpan
dc.contributor.authorCavaleiro, Albano
dc.contributor.authorJu, Hongbo
dc.contributor.editorKiryukhantsev-Korneev, Philipp
dc.date.accessioned2026-01-30T19:39:17Z
dc.date.available2026-01-30T19:39:17Z
dc.date.issued2025-09-15
dc.description.abstractThe multilayered Mo2N/Ag-SiNx self-lubricant films were designed and deposited using a DC (Direct Current) magnetron sputtering system under mixed gas atmosphere of N2 and Ar. The modulation ratio (thickness ratio of Mo2N to Ag-SiNx) was fixed at 2:1, while the modulation periods (thickness of Mo2N and its adjacent Ag-SiNx layer) were set at 20, 40, and 60 nm. The results indicated that all multilayer films, regardless of modulation period, exhibited a combination of face-centered cubic (fcc) and amorphous phases. Specifically, fcc-Mo2N was detected in the Mo2N layers, while fcc-Ag and amorphous SiNx co-existed in the Ag-SiNx layers. The multilayered architecture induced residual stress and interface strengthening, resulting in hardness values exceeding 21 GPa for all films. Compared to Mo2N and Ag-SiNx monolayer films, the multilayer structure significantly enhanced tribological properties at room temperature, particularly in terms of wear resistance. The Mo2N/Ag-SiNx multilayer films exhibit ~25% lower friction than Ag-SiNx, ~3% lower than Mo2N, and achieve remarkable wear rate reductions of ~71% and ~85% compared to Ag-SiNx and Mo2N, respectively, demonstrating superior tribological performance. The synergistic effects of both modulation layers and relative high hardness were key factors contributing to the enhanced tribological behavior.eng
dc.description.sponsorshipSupported by the projects granted by the National Natural Science Foundation of China with the number of 52171071, national funds through FCT of Portugal—Fundação para a Ciência e a Tecnologia, under a scientific contract of 2021.04115.CEECIND, 2023.06224.CEECIND, and under projects UID/00285-Centre for Mechanical Engineering, Materials and Processes and LA/P/0112/2020, the Slovenian Research Agency ARIS under the Research Core Funding Programme No. P2-0231 and the Marie Skłodowska-Curie Actions (MSCA) with the number of MSCA-COFUND-5100-237/2023-9.
dc.identifier.citationLuan, J., Wang, L., Dong, S., Ferreira, F., Fernandes, F., Mo, C., Cavaleiro, A., & Ju, H. (2025). Microstructure, Mechanical, and Tribological Properties of Mo2N/Ag-SiNx Nanomultilayers with Varying Modulation Periods. Coatings, 15(9), 1080. https://doi.org/10.3390/coatings15091080
dc.identifier.doi10.3390/coatings15091080
dc.identifier.issn2079-6412
dc.identifier.urihttp://hdl.handle.net/10400.22/31768
dc.language.isoeng
dc.peerreviewedyes
dc.publisherMDPI
dc.relation.hasversionhttps://www.mdpi.com/2079-6412/15/9/1080
dc.relation.ispartofseries1080
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectmagnetron sputtering
dc.subjectMo2N/Ag-SiNx multilayered films
dc.subjectmodulation periods
dc.subjecttribological properties
dc.titleMicrostructure, Mechanical, and Tribological Properties of Mo2N/Ag-SiNx Nanomultilayers with Varying Modulation Periodseng
dc.typeresearch article
dspace.entity.typePublication
oaire.citation.issue9
oaire.citation.titleCoatings
oaire.citation.volume15
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameFernandes
person.givenNameFilipe
person.identifier995468
person.identifier.ciencia-id2113-A18B-EEE8
person.identifier.orcid0000-0003-4035-3241
person.identifier.scopus-author-id55644767300
relation.isAuthorOfPublicationf3fb450f-5f22-4f0c-8916-7742d519f6af
relation.isAuthorOfPublication.latestForDiscoveryf3fb450f-5f22-4f0c-8916-7742d519f6af

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