| 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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Polcar, Tomas
University of Southampton
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (28/28 displayed)
- 2023Dense nanocrystalline W alloys: Enhancement of hardness and thermal stability by Al additioncitations
- 2023Influence of HCP/BCC interface orientation on the tribological behavior of Zr/Nb multilayer during nanoscratch: A combined experimental and atomistic studycitations
- 2023Interfacial characteristics of austenitic 316L and martensitic 15-5PH stainless steels joined by laser powder bed fusioncitations
- 2022The mechanised testing and sequential wear-analysis of replica Bronze Age palstave bladescitations
- 2022Enhanced erosion resistance of anti-reflective TiO2/SiO2 coatings induced by Zr-oxide doping
- 2022Effects of rescanning parameters on densification and microstructural refinement of 316L stainless steel fabricated by laser powder bed fusioncitations
- 2021Investigation on the thermodynamic stability of nanocrystalline W-based alloys: a combined theoretical and experimental approachcitations
- 2021Fabrication of nanocrystalline supersaturated W–Al alloys with enhanced thermal stability and high sinterabilitycitations
- 2021Phase behaviour of (Ti:Mo) S2 binary alloys arising from electron-lattice couplingcitations
- 2021Phototribology: control of friction by lightcitations
- 2020Deformation behavior of nanocrystalline body-centered cubic iron with segregated, foreign interstitial: A molecular dynamics studycitations
- 2020Comparative study of DC and RF sputtered MoSe22 coatings containing carbon - An approach to optimize 3 stoichiometry, microstructure, crystallinity and 4 hardnesscitations
- 2020A 2D finite element approach for predicting the machining performance of nanolayered TiAlCrN coating on WC-Co cutting tool during dry turning of AISI 1045 steelcitations
- 2020The fabrication of high strength Zr/Nb nanocomposites using high-pressure torsioncitations
- 2020Synthesis and structural properties of Mo-S-N sputtered coatingscitations
- 2019Deformation-controlled design of metallic nanocompositescitations
- 2019Mechanical properties and microstructural stability of CuTa/Cu composite coatingscitations
- 20172H → 1T phase engineering of layered tantalum disulphides in electrocatalysis: oxygen reduction reactioncitations
- 2017Combined size and texture-dependent deformation and strengthening mechanisms in Zr/Nb nano-multilayerscitations
- 2016Structural, mechanical and functional properties of irradiated multilayer nanocomposites
- 2016Engineering PDMS topography on microgrooved Parylene C
- 2016Evolution of structural, mechanical and tribological properties of Ni–P/MWCNT coatings as a function of annealing temperaturecitations
- 2015Friction force microscopy analysis of self-adaptive W-S-C coatings:nanoscale friction and wearcitations
- 2015Friction force microscopy analysis of self-adaptive W-S-C coatingscitations
- 2015Stress-induced martensitic transformation in Ni–Ti(–Cu) interlayers controlling stress distribution in functional coatings during slidingcitations
- 2014The effect of increasing V content on the structure, mechanical properties and oxidation resistance of Ti–Si–V–N films deposited by DC reactive magnetron sputteringcitations
- 2013Self-lubricating W-S-C-Cr tribological coatings deposited by r.f. magnetron sputtering
- 2013Zr-DLC coatings - analysis of the friction and wear mechanisms
Places of action
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article
Friction force microscopy analysis of self-adaptive W-S-C coatings
Abstract
Transition metal dichalcogenides (TMD) are increasingly popular due to unique structural and mechanical properties. They belong, together with graphene and similar 2D materials, to small family of solid lubricants with potential to produce ultra-low friction state. At the macroscale, low friction stems from the ability to form well-oriented films on the sliding surface (typically up to 10 nm thick), with the TMD basal planes aligned parallel to the surface. In this paper, we quantitatively evaluate tribological properties of three sputtered tungsten-sulfur-carbon (W-S-C) coatings at a nanoscale using friction force microscopy. In particular, we investigate possible formation of well-ordered tungsten disulfide (WS2) layers on the coating surface. The coefficient of friction decreased with increasing load independently of coating composition or mechanical properties. In contrast, hard coatings with high tungsten carbide content were more resistant to wear. We successfully identified a WS2 tribolayer at the sliding interface, which peeled off as ultrathin flakes and attached to AFM tip. Nanoscale tribological behaviour of WSC coatings replicates deviation of Amonton’s law observed in macroscale testing and strongly suggests that the tribolayer is formed almost immediately after the start of sliding.