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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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Angelova, L.
Bulgarian Academy of Sciences
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (6/6 displayed)
- 2023Ultra-short laser structuring of 3D-microfabricated non-resorbable polystyrene polymer to anchor cellular adhesion
- 2023A parametric study of ultra-short laser surface patterning of freeze foamed TCP-Zr: effects of laser parameters on surface morphology
- 2022Laser processing of nitride ceramicscitations
- 2022Optimization of titanium and titanium alloy surface properties by ultra-short laser processing for improved antibacterial characteristicscitations
- 2022Optimization of titanium and titanium alloy surface properties by ultra-short laser processing for improved antibacterial characteristicscitations
- 2022Controllable structures on the surface of natural polymers made by proton beam writing and femtosecond laser treatmentcitations
Places of action
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article
Laser processing of nitride ceramics
Abstract
<jats:title>Abstract</jats:title><jats:p>In this work, the surface modifications are studied of aluminium nitride (AlN) and silicon nitride (Si<jats:sub>3</jats:sub>N<jats:sub>4</jats:sub>) ceramics irradiated by nanosecond laser pulses. The laser processing is performed by a Nd:YAG laser system at four wavelengths - 266 nm, 355 nm, 532 nm, and 1064 nm. It is found that the average ablation rate per pulse is in the order of few hundreds of nanometers, as the laser treatment leads to the appearance of a variety of micro- and nanostructures on the surface of the material. In the case of AlN, a conductive layer is formed on the surface whose resistance can be modified by varying the processing conditions. Using a model based on the heat-conduction equation, the temperature evolution, ablation depth and temporal dynamics of the ablation process are followed.</jats:p>