| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Galiotis, Costas
University of Patras
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (29/29 displayed)
- 2024Operando characterization and molecular simulations reveal the growth kinetics of graphene on liquid copper during chemical vapor depositioncitations
- 2024Operando Characterization and Molecular Simulations Reveal the Growth Kinetics of Graphene on Liquid Copper During Chemical Vapor Depositioncitations
- 2023Understanding cure and interphase effects in functionalized graphene-epoxy nanocompositescitations
- 2023Understanding cure and interphase effects in functionalized graphene-epoxy nanocompositescitations
- 2023Tribology of Copper Metal Matrix Composites Reinforced with Fluorinated Graphene Oxide Nanosheets: Implications for Solid Lubricants in Mechanical Switchescitations
- 2023Mesoscopic Modeling and Experimental Validation of Thermal and Mechanical Properties of Polypropylene Nanocomposites Reinforced By Graphene-Based Fillerscitations
- 2023Nanomechanics of Ultrathin Carbon Nanomembranescitations
- 2023Novel Graphene-Based Materials as a Tool for Improving Long-Term Storage of Cultural Heritagecitations
- 2023Highly stretchable strain sensors based on Marangoni self-assemblies of graphene and its hybrids with other 2D materialscitations
- 2022Hazard Assessment of Abraded Thermoplastic Composites Reinforced with Reduced Graphene Oxidecitations
- 2021Highly Deformable, Ultrathin Large-Area Poly(methyl methacrylate) Filmscitations
- 2021Highly Deformable, Ultrathin Large-Area Poly(methyl methacrylate) Filmscitations
- 2021Efficient Mechanical Stress Transfer in Multilayer Graphene with a Ladder-like Architecturecitations
- 2020Production and processing of graphene and related materialscitations
- 2020Production and processing of graphene and related materialscitations
- 2020Production and processing of graphene and related materialscitations
- 2020Production and processing of graphene and related materialscitations
- 2020Production and processing of graphene and related materialscitations
- 2020Production and processing of graphene and related materialscitations
- 2020Production and processing of graphene and related materialscitations
- 2020Production and processing of graphene and related materials
- 2020Graphene and related materials in hierarchical fiber composites: Production techniques and key industrial benefitscitations
- 2020Mechanical, Electrical, and Thermal Properties of Carbon Nanotube Buckypapers/Epoxy Nanocomposites Produced by Oxidized and Epoxidized Nanotubes
- 2019Graphene and related materials in hierarchical fiber composites: production techniques and key industrial benefitscitations
- 2019Graphene and related materials in hierarchical fiber composites: production techniques and key industrial benefitscitations
- 2016Mechanical Stability of Flexible Graphene-Based Displayscitations
- 2015Deformation of Wrinkled Graphenecitations
- 2011Development of a universal stress sensor for graphene and carbon fibrescitations
- 2002Progress on composites with embedded shape memory alloy wirescitations
Places of action
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article
Tribology of Copper Metal Matrix Composites Reinforced with Fluorinated Graphene Oxide Nanosheets: Implications for Solid Lubricants in Mechanical Switches
Abstract
The potential for the use of copper coatings on steel switching mechanisms is abundant owing to the high conductivities and corrosion resistance that they impart on the engineered assemblies. However, applications of these coatings on such moving parts are limited due to their poor tribological properties; tendencies to generate high friction and susceptibility to degradative wear. In this study, we have fabricated a fluorinated graphene oxide-copper metal matrix composite (FGO-CMMC) on an AISI 52100 bearing steel substrate by a simple electrodeposition process in water. The FGO-CMMC coatings exhibited excellent lubrication performance under pin-on-disk (PoD) tribological sliding at 1N load, which reduced CoF by 63 and 69%, compared to the GO-CMMC and pure copper coatings that were also prepared. Furthermore, FGO-CMMC achieved low friction and low wear at higher sliding loads. The lubrication enhancement of the FGO-CMMCs is attributed to the tribochemical reaction of FGO with the AISI 52100 steel counterface initiated by the sliding load. The formation of an asymmetric tribofilm structure on the sliding track is critical; the performance of the FGO/Cu tribofilm formed in the track is boosted by the continued fluorination of the counterface surface during PoD sliding, passivating the tribosystem from adhesion-driven breakdown. The FGO-CMMC and GO-CMMC coatings also provide increased corrosion protection reaching 94.2 and 91.6% compared to the bare steel substrate, allowing for the preservation of the long-term low-friction performance of the coating. Other influences include the improved interlaminar shear strength of the FGO-containing composite. The excellent lubrication performance of the copper matrix composite coatings facilitated by FGO incorporation makes it a promising solid lubricant candidate for use in mechanical engineering applications.