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| Naji, M. |
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Garrelie, Florence
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Topics
Publications (71/71 displayed)
- 2024Dynamics of Cu-Zr metallic glass devitrification under ultrafast laser excitation revealed by atomistic modelingcitations
- 2024Multiscale characterization of the wettability of fs-laser textured thin film metallic glasses surfaces
- 2024Tribological behavior of DLC film models in base oils: Analysis of influence of sp3/sp2 ratio and hydrogen contentcitations
- 2024Ultrafast laser-induced topochemistry on metallic glass surfacescitations
- 2024Topographic, chemical and property modifications of PVD ZrCu-based thin film metallic glasses through femtosecond laser treatment
- 2024Multiscale characterization of the wettability of thin film metallic glasses surfaces: Effect of a fs-laser treatment
- 2023Dynamics of Cu-Zr metallic glass devitrification under ultrafast laser excitation revealed by atomistic modelingcitations
- 2023Towards Room Temperature Phase Transition of W-Doped VO2 Thin Films Deposited by Pulsed Laser Deposition: Thermochromic, Surface, and Structural Analysiscitations
- 2023Pulsed laser deposited BN/VO2/BN architectured films with thermochromic properties at low transition temperature
- 2023Polymorphism of VO2 thin film: M1, T, and M2 single phase synthesis using pulsed laser depositioncitations
- 2022Discrimination of different amorphous carbon by low fluence laser irradiationcitations
- 2022Tailoring thermochromic and optical properties of VO2 thin films by pulsed laser deposition using different starting routescitations
- 2022High‑Density Nanowells Formation in Ultrafast Laser‑Irradiated Thin Film Metallic Glasscitations
- 2022Molecular dynamics simulation of structural evolution in crystalline and amorphous CuZr alloys upon ultrafast laser irradiationcitations
- 2021Molecular dynamics simulation of structural evolution in crystal and amorphous alloys under ultrafast laser irradiation
- 2021Transfer-free graphene synthesis by nickel catalyst dewetting using rapid thermal annealingcitations
- 2021Initial Morphology and Feedback Effects on Laser-Induced Periodic Nanostructuring of Thin-Film Metallic Glassescitations
- 2020Revisiting thin film of glassy carboncitations
- 2020Mixing periodic topographies and structural patterns on silicon surfaces mediated by ultrafast photoexcited charge carrierscitations
- 2019Graphene synthesis on SiO2 using pulsed laser deposition with bilayer predominancecitations
- 2019Dynamics of carbon diffusion and segregation through nickel catalyst, investigated by in-situ XPS, during the growth of nitrogen-doped graphenecitations
- 2019Raman study of the substrate influence on graphene synthesis using a solid carbon source via rapid thermal annealingcitations
- 2019Imaging and modeling the multipulse dynamics of ultrafast laser-induced self-organization
- 2019Imaging and modeling the multipulse dynamics of ultrafast laser-induced self-organization
- 2019Comparative Raman study of graphene growth from solid carbon source on Si(100) and SiO2 substrates by combining pulsed laser deposition and rapid thermal annealing
- 2019Elaboration of Graphene and doped-graphene by Pulsed Laser Deposition
- 2019Pulsed laser co-deposition of carbon and boron for boron-doped graphene synthesis
- 2019Dynamics of carbon diffusion and segregation through nickel catalyst, investigated by in situ XPS, during growth of nitrogen doped graphenecitations
- 2019Graphene and doped-graphene synthesis by Pulse Laser Deposition: a review
- 2018Simulation of nanosecond IR laser annealing of cerium gadolinium oxidecitations
- 2018Electrochemical properties of nitrogen-doped graphene for environmental sensors
- 2016Ultrafast LIPSS: from coherence to dynamic evolution
- 2016Robust Electrografting on Self-Organized 3D Graphene Electrodescitations
- 2016Effect of nitrogen surrounding gas and plasma assistance on nitrogen incorporation in a-C:N films by femtosecond pulsed laser depositioncitations
- 2016Structure, electrochemical properties and functionalization of amorphous CN films deposited by femtosecond pulsed laser ablationcitations
- 2016Growth Twinning and Generation of High-Frequency Surface Nanostructures in Ultrafast Laser-Induced Transient Melting and Resolidificationcitations
- 2015Dynamics of nanostructure formation on metal surfaces induced by ultrashort laser irradiation
- 2015High N-content a-C:N films elaborated by femtosecond PLD withplasma assistancecitations
- 2015Structural and electrochemical properties of amorphous carbon nitride films deposited by femtosecond pulsed laser ablation
- 2015Densification of cerium gadolinium oxide by laser treatment
- 2015High N-content a-C:N films elaborated by femtosecond PLD with plasma assistancecitations
- 2015High N-content a-C:N films elaborated by femtosecond PLD with plasma assistancecitations
- 2012Formation Dynamics of Ultrafast Laser-induced Periodic-surface Structure
- 2012Experimental and theoretical insights into the formation of femtosecond laser-induced periodic surface structures on metals
- 2012ADVANCES IN UNDERSTANDING HOW FEMTOSECOND LASER RIPPLES FORMATION IN METAL WORKS
- 2012Plasmonic and hydrodynamic effects in ultrafast laser generation of periodic surface structures on metals
- 2012Plasmonic and Hydrodynamic Effects in Ultrafast Laser-Induced Periodic Surface Structures on Metalscitations
- 2012Effects of electron-phonon coupling and electron diffusion on ripples growth on ultrafast-laser-irradiated metalscitations
- 2011Ultrafast laser-induced periodic-surface structure: Formation mechanisms and applications in laser marking
- 2011Electrochemical performances of B doped and undoped Diamond-Like Carbon (DLC) films deposited by femtosecond pulsed laser ablation for heavy metal detection using square wave anodic stripping voltammetric (SWASV) techniquecitations
- 2010Influence of the top surface nanostructure of a tetrahedral amorphous carbon film on the friction mechanism
- 2010Laser ablation characteristics of yttria-doped zirconia in the nanosecond and femtosecond regimescitations
- 2010On the early stages of friction of tetrahedral amorphous carbon thin films deposited by femtosecond laser ablation
- 2009Ultrashort pulsed laser deposition of thin films with femtosecond and temporal shaped laser beam
- 2009Electrical properties of boron-doped diamond-like carbon thin films deposited by femtosecond pulsed laser ablation
- 2009Effect of Boron Incorporation on the Structure and Electrical Properties of Diamond-Like Carbon Films Deposited by Femtosecond and Nanosecond Pulsed Laser Ablation
- 2008One-step deposition of diamond-like carbon films containing self-assembled metallic nanoparticles, by femtosecond pulsed laser ablationcitations
- 2008Femtosecond laser ablation for thin films deposition
- 2008Boron doped diamond-like carbon thin films elaborated by femtosecond and nanosecond pulsed laser ablation
- 2007Boron doped diamond-like carbon thin films elaborated by femtosecond pulsed laser ablation for the optimization of the electrical properties in the range 70-300 K
- 2006Nanostructured coatings of metal-incorporated amorphous carbon deposited by femtosecond Pulsed Laser Deposition - Correlation with plasma plume diagnostics
- 2006New trends in femtosecond Pulsed Laser Deposition and femtosecond produced plasma diagnostics
- 2006New trends in femtosecond Pulsed Laser Deposition and femtosecond produced plasma diagnostics
- 2006Optical, electrical and structural investigations of nanostructured coatings of metal-incorporated amorphous carbon
- 2006Hopping current density in amorpous carbon/crystalline silicon heterojunctionscitations
- 2006Characterization of different DLC and DLN electrodes for biosensor design
- 2005Nanocomposite tantalum-carbon-based films deposited by femtosecond pulsed laser ablationcitations
- 2005Nickel-incorporated amorphous carbon film deposited by femtosecond pulsed laser ablationcitations
- 2005Mechanical and tribological characterization of tetrahedral diamond-like carbon deposited by femtosecond pulsed laser deposition on pre-treated orthopaedic biomaterialscitations
- 2005Hopping current density in reversely biased crystalline silicon / amorphous carbon heterojunctionscitations
- 2005Optical properties of high-density amorphous carbon films grown by nanosecond and femtosecond pulsed laser ablationcitations
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article
Laser ablation characteristics of yttria-doped zirconia in the nanosecond and femtosecond regimes
Abstract
International audience ; The laser ablation characteristics of yttria-stabilized zirconia (YSZ) have been investigated as a function of the target microstructure and dopant level for different nanosecond- [ArF, KrF, and XeCl excimers; Nd:YAG (yttrium aluminum garnet) (fourth harmonic)] and femtosecond-laser sources [Ti:sapphire (fundamental and third harmonic)]. Particle ejection, which compromises the quality of coatings prepared by pulsed laser deposition (PLD), was analyzed in detail. Nanosecond-laser pulses cause a severe thermomechanical surface cracking and exfoliation of micron-sized fragments on a microsecond to millisecond time scale in the case of 8–9.5 mol % Y2O3-doped, fully stabilized zirconia (8YSZ and 9.5YSZ) targets. As a consequence of the intrinsic material brittleness, fully stabilized YSZ coatings deposited by PLD contained particles for all tested conditions. Lower doped partially stabilized zirconia (3YSZ) exhibits a superior fracture toughness attributed to a laser-induced partial transition to the monoclinic phase, detected by Raman spectroscopy, which enables the deposition of particle-free dense thin films by conventional PLD using nanosecond-UV laser radiation at moderate fluences of 1.2–1.5 J/cm2. The ablation dynamics of ultrashort laser pulses differ fundamentally from the nanosecond regime as evidenced, e.g., by time-resolved shadowgraphy and light scattering experiments. Femtosecond pulses prevent the exfoliation of micron-sized fragments but result invariably in a pronounced ejection of submicron particles. The resulting PLD coatings are porous and reveal a large surface roughness as they consist of an agglomeration of nanoparticles. Femtosecond-NIR pulses provide a factor of 2.5–10 higher material removal rates compared to nanosecond- and femtosecond-UV pulses. The ablation metrics, i.e., threshold fluence and effective absorptivity, mainly depend on the laser wavelength while the pulse duration, target microstructure, and dopant level are of minor importance. Evidence is ...