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Multilayer Mo2N-Ag/SiNx films for demanding applications: Morphology, structure and temperature-cycling tribological properties

dc.contributor.authorJu, Hongbo
dc.contributor.authorZhou, Rui
dc.contributor.authorLuan, Jing
dc.contributor.authorYu, Lihua
dc.contributor.authorXu, Junhua
dc.contributor.authorZuo, Bin
dc.contributor.authorYang, Junfeng
dc.contributor.authorGeng, Yaoxiang
dc.contributor.authorZhao, Lijun
dc.contributor.authorFernandes, Filipe
dc.date.accessioned2023-01-30T14:25:08Z
dc.date.available2023-01-30T14:25:08Z
dc.date.issued2022
dc.description.abstractNowadays there is the need to avoid the excessive consumption of liquid lubricant oils, as they are harmful to the environment and hard to disposal. Self-lubricant films have been seen as the sustainable solution to achieve a long-term lubrication under high temperature-cycling conditions. In this manuscript, multilayer Mo2N-Ag/SiNx films with a fixed modulation ratio (thickness of Mo2N-Ag to SiNx) of 3:1, with changing modulation period (Λ, thickness of Mo2N-Ag and SiNx) from 8 to 200 nm were produced to achieve an effective balance between the lubricious phase diffusion control and the adequate formation of the low friction tribo-layers. Results showed that a dual-phase of fcc-Mo2N and fcc-Ag co-existed in Mo2N-Ag layers, while the SiNx layer exhibited an amorphous character. Both room temperature (RT) lubricant and wear-resistance properties of the films were improved by increasing Λ from 8 to 64 nm, while a further increase of Λ degraded the wear-resistance properties. The multilayer film at Λ = 64 nm exhibited an excellent RT-500 °C temperature-cycling tribological properties. Mechanical properties and the synergistic effect of both modulation layers were the cause for the improvement of the tribological properties.pt_PT
dc.description.sponsorshipSupported by the National Natural Science Foundation of China, China (51801081, 52071159, 52171071, 52172090); Portugal National Funds through FCT project, Portugal (2021.04115); Outstanding University Young Teachers of ‘‘Qing Lan Project” of Jiangsu Province, China; Excellent Talents of ‘‘Shenlan Project” of Jiangsu University of Science and Technology, China; China Merchants Marine Scientific Research and Innovation Fund, China. Filipe Fernandes acknowledges the funding received in the aim of the projects: MCTool21 - ref. ‘‘POCI-01-0247- FEDER-045940”, CEMMPRE – ref. ‘‘UIDB/00285/2020” and SMARTLUB – ref. ‘‘POCI- 01-0145-FEDER-031807”.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1016/j.matdes.2022.111128pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.22/22007
dc.language.isoengpt_PT
dc.publisherElsevierpt_PT
dc.relationPOCI-01-0247- FEDER-045940pt_PT
dc.relationCentre for Mechanical Enginnering, Materials and Processes
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/pii/S026412752200750X?via%3Dihubpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/pt_PT
dc.subjectMagnetron sputteringpt_PT
dc.subjectMo2N-Ag/SiNx multilayer filmspt_PT
dc.subjectModulation periodpt_PT
dc.subjectTribological propertiespt_PT
dc.subjectTemperature-cycling tribologypt_PT
dc.titleMultilayer Mo2N-Ag/SiNx films for demanding applications: Morphology, structure and temperature-cycling tribological propertiespt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleCentre for Mechanical Enginnering, Materials and Processes
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00285%2F2020/PT
oaire.citation.startPage111128pt_PT
oaire.citation.titleMaterials & Designpt_PT
oaire.citation.volume223pt_PT
oaire.fundingStream6817 - DCRRNI ID
person.familyNameFernandes
person.givenNameFilipe
person.identifier995468
person.identifier.ciencia-id2113-A18B-EEE8
person.identifier.orcid0000-0003-4035-3241
person.identifier.scopus-author-id55644767300
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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relation.isAuthorOfPublication.latestForDiscoveryf3fb450f-5f22-4f0c-8916-7742d519f6af
relation.isProjectOfPublicatione9972dd7-ceaf-49ee-959a-d2a0e393b124
relation.isProjectOfPublication.latestForDiscoverye9972dd7-ceaf-49ee-959a-d2a0e393b124

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