| 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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Puhakka, Eini
Savonia University of Applied Sciences
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (9/9 displayed)
- 2017Effect of layer charge on the crystalline swelling of Na+, K+ and Ca2+ montmorillonites : DFT and molecular dynamics studiescitations
- 2016Effect of layer charge on the crystalline swelling of Na+, K+ and Ca2+ montmorillonites: DFT and molecular dynamics studiescitations
- 2015Combining a molecular modelling approach with direct current and high power impulse magnetron sputtering to develop new TiO2 thin films for antifouling applicationscitations
- 2013Controlling the bulk and surface properties of TiOx coatings synthesized by High Power Impulse Magnetron Sputtering (Hi-PIMS) for antifouling applications
- 2011Density functional theory studies on the formation of CaCO 3 depositions on cristobalite, diamond, and titanium carbide surfacescitations
- 2011Density Functional Theory Studies on the Formation of CaCO3 Depositions on Cristobalite, Diamond, and Titanium Carbide Surfacescitations
- 2005Comparison of modeling and experimental results of modified Pt-based PEMFC cathode-catalysts
- 2003Adsorption studies on iron oxides with reference to the oxide films formed on material surfaces in nuclear power plants
- 2002Comparison of modeling and experimental results of modified Pt-based PEMFC cathode-catalysts
Places of action
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article
Combining a molecular modelling approach with direct current and high power impulse magnetron sputtering to develop new TiO2 thin films for antifouling applications
Abstract
The accumulation of crystallization deposits at the surface of heat exchangers results in the increase of the heat transfer resistance and a drastic loss of efficiency. Coating surfaces with a thin film can limit the scale-surface adhesion force and thus the fouling process. This study compares the efficiency of TiO2 layers exhibiting various crystalline planes and microstructures to reduce the kinetic of fouling. Molecular modelling with density functional theory is first carried out to determine the energy of CaCO3 deposition on anatase (1 0 1), (0 0 4), and (2 0 0) surfaces as well as on a rutile (1 0 1) one. TiO2 thin films (thickness <1 µm) are then synthesized by direct current and high power impulse magnetron sputtering (dcMS and HiPIMS respectively) in order to tune their crystallinity and microstructure. Lastly, the induction time to grow CaCO3 crystals at the surface of such materials is determined. Comparing the modelling and fouling results allows to draw general trends on the potential anti-scaling properties of TiO2 crystallized under various forms. Until now, such a comparison combining a theoretical approach with experimental fouling tests has never been reported in the literature.