| 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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Vishnyakov, Vm
University of Huddersfield
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (30/30 displayed)
- 2022Reactively sintered TiB2-based heteromodulus UHT ceramics with in-situ formed graphene for machinable concentrated solar light absorberscitations
- 2022High Densification of Tungsten via Hot Pressing at 1300 °C in Carbon Presencecitations
- 2022Reaction Sintering of Biocompatible Al2O3-hBN Ceramicscitations
- 2022Reaction Sintering of Machinable TiB2-BN-C Ceramics with In-Situ Formed h-BN Nanostructurecitations
- 2021Integrated Nanomechanical Characterisation of Hard Coatingscitations
- 2021Thermal conductivity and thermal shock resistance of TiB2-based UHTCs enhanced by graphite plateletscitations
- 2021Corrosion performance and mechanical properties of FeCrSiNb amorphous equiatomic HEA thin filmcitations
- 2021Deviating from the pure MAX phase conceptcitations
- 2021Single-phase FeMnNiAl compositionally complex alloycitations
- 2020Demanding applications in harsh environment–FeCrMnNiC amorphous equiatomic alloy thin filmcitations
- 2020Reactive hot pressing route for dense ZrB2-SiC and ZrB2-SiC-CNT ultra-high temperature ceramicscitations
- 2020Effect of aluminium concentration on phase formation and radiation stability of Cr2Al x C thin filmcitations
- 2019Mechanisms of TiB2 and graphite nucleation during TiC–B4C high temperature interactioncitations
- 2019Reactive sintering of TiB2-SiC-CNT ceramicscitations
- 2018Synthesis and characterisation of high-entropy alloy thin films as candidates for coating nuclear fuel cladding alloyscitations
- 2018Use of ion-assisted sputtering technique for producing photocatalytic titanium dioxide thin filmscitations
- 2017Structure formation of TiB2-TiC-B4C-C hetero-modulus ceramics via reaction hot pressingcitations
- 2017Nano-scratch testing of (Ti,Fe)Nx thin films on siliconcitations
- 2017Fracture toughness in some hetero-modulus composite carbidescitations
- 2015Development of DLC coating architectures for demanding functional surface applications through nano- and micro-mechanical testingcitations
- 2015Interface Dynamics in Strained Polymer Nanocompositescitations
- 2013Ti3SiC2-formation during Ti-C-Si multilayer deposition by magnetron sputtering at 650°ccitations
- 2013Nanoscale Friction Measurements Up to 750 °Ccitations
- 2011Amorphous boron containing silicon carbo-nitrides created by ion sputteringcitations
- 2011Photocatalytic activity of reactively sputtered and directly sputtered titania coatingscitations
- 2010Physicomechanical properties of ultrahigh temperature heteromodulus ceramics based on group 4 transition metal carbidescitations
- 2010Comparison of Ti-Zr-V nonevaporable getter films deposited using alloy or twisted wire sputter-targetscitations
- 2006Single ion-induced amorphous zones in silicon
- 2006Influence of mechanical properties on the nanoscratch behaviour of hard nanocomposite TiN/Si3N4 coatings on Sicitations
- 2005Study of nanocrystalline TiN/Si3N4 thin films deposited using a dual ion beam methodcitations
Places of action
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article
Development of DLC coating architectures for demanding functional surface applications through nano- and micro-mechanical testing
Abstract
DLC coatings can combine high hardness with low friction. However, they are often deposited with high levels of intrinsic stress and display low adhesion strength resulting in poor performance in demanding applications. A highly topical challenge is to develop advanced DLC coatings capable of withstanding more demanding applications in the automotive, cutting tools, MEMS and oil and gas sectors. The results from several nanomechanical and tribological test techniques - nanoindentation, nano-scratch and nanofretting (nano-wear) - can be used together to aid the design of DLC coating architectures for enhanced durability in specific applications. In this study the behaviour of multilayered DLC coatings (Cr/W-C:H/a-C:H, Cr/W-C:H/Si-a-C:H) was compared to that of CrN/a-C:H:W (WC/C). We have previously reported that in nano-wear tests the coating with the highest hardness and H/E displayed greater wear resistance [T.W. Liskiewicz et al, Surf. Coat. Technol. 237 (2013) 212]. By employing nano- and micro-scale tribological testing with probes of differing sharpness it is possible to change the sensitivity of the test to probe the response of the coating top layer or the entire multilayer coating-substrate system. In the nano-scratch tests using a spherical indenter with a 5 m end radius the maximum stresses are located well within the top layer of the multilayer coatings and consequently the mechanical properties of this top layer dominate the nano-tribological behaviour. In the micro-scratch using a 25 m spherical probe the stress field extends further towards the sublayers and steel substrate and consequently the behaviour is completely different. Under these conditions the coating with the lowest hardness and H/E showed improved performance with higher critical loads for cracking and total coating failure. High resolution SEM imaging has been used to investigate this further. A simple contact model strongly suggests that cracking and failure events occur on the harder coatings when the maximum von Mises stress was ...