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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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Ahmed Obeidi, Muhannad
Dublin City University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (14/14 displayed)
- 2021CO2 laser polishing of laser-powder bed fusion produced AlSi10Mg partscitations
- 2020Comparing the adhesion strength of 316L stainless steel joints after laser surface texturing by CO2 and fiber laserscitations
- 2020Comprehensive assessment of spatter material generated during selective laser melting of stainless steelcitations
- 2020Experimental and empirical model analysis of microsurface texturing on 316 L press-fit joints fabricated by selective laser meltingcitations
- 2019Laser Polishing of Additive Manufactured 316L Stainless Steel Synthesized by Selective Laser Melting
- 2018Investigating the effect of the high power and high speed CO2 laser surface melting on the residual stresses and corrosion resistance of 316L stainless steel
- 2018Laser surface texturing of stainless steel 316L cylindrical pins for interference fit applications
- 2018Laser surface processing with controlled nitrogen-argon concentration levels for regulated surface life time
- 2017Surface roughness control by extreme ultraviolet (EUV) radiation
- 2017Laser surface texturing of stainless steel 316L cylindrical pins for interference fit applicationscitations
- 2017Laser surface processing with controlled nitrogen-argon concentration levels for regulated surface life timecitations
- 2017Laser Surface Texturing for High Control of Interference Fit Joint Load Bearing
- 2016Methodology of laser processing for precise control of surface micro-topology
- 2016A Review of Semi-Solid Aluminium-Steel Joining Processes
Places of action
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document
Surface roughness control by extreme ultraviolet (EUV) radiation
Abstract
Surface roughness control of polymeric materials is often desirable in various biomedical engineering applications related to biocompatibility control, separation science and surface wettability control. In this study, Polyethylene terephthalate (PET) polymer films were irradiated with Extreme ultraviolet (EUV) photons in nitrogen environment and investigations were performed on surface roughness modification via EUV exposure. The samples were irradiated at 3 mm and 4 mm distance from the focal spot to investigate the effect of EUV fluence on topography. The topography of the EUV treated PET samples were studied by AFM. The detailed scanning was also performed on the sample irradiated at 3 mm. It was observed that the average surface roughness of PET samples was increased from 9 nm (pristine sample) to 280 nm and 253 nm for EUV irradiated samples. Detailed AFM studies confirmed the presence of 1.8 mm wide period U-shaped channels in EUV exposed PET samples. The walls of the channels were having FWHM of about 0.4 mm. The channels were created due to translatory movements of the sample in horizontal and transverse directions during the EUV exposure. The increased surface roughness is useful for many applications. The nanoscale channels fabricated by EUV exposure could be interesting for microfluidic applications based on lab-on-a-chip (LOC) devices.