A5000661884- Metallic Glasses and Amorphous Alloys
- Metal and Thin Film Mechanics
- nanoparticles nucleation surface interactions
- Glass properties and applications
- Material Dynamics and Properties
- Titanium Alloys Microstructure and Properties
- Nanoporous metals and alloys
- Advanced Materials and Mechanics
- Diamond and Carbon-based Materials Research
- Thin-Film Transistor Technologies
- Intermetallics and Advanced Alloy Properties
- Conducting polymers and applications
- Plasmonic and Surface Plasmon Research
- Meat and Animal Product Quality
- Copper-based nanomaterials and applications
- Aquaculture Nutrition and Growth
- Organic Electronics and Photovoltaics
- Nanomaterials for catalytic reactions
- Laser Material Processing Techniques
- Metallurgical Processes and Thermodynamics
- Pigment Synthesis and Properties
- Advanced Electron Microscopy Techniques and Applications
- Anodic Oxide Films and Nanostructures
- Collagen: Extraction and Characterization
- Nuclear Materials and Properties
University of Cambridge
2020-2024
University of Ioannina
2010-2023
Institut polytechnique de Grenoble
2015-2020
Science et Ingénierie des Matériaux et Procédés
2015-2020
Université Grenoble Alpes
2015-2020
Centre National de la Recherche Scientifique
2015-2020
Université Joseph Fourier
2015
Tohoku University
2015
Advanced Institute of Materials Science
2015
Universidade Federal de São Carlos
2015
A novel two-step approach for preparing carbon nanotube (CNT) systems, exhibiting an extraordinary combination of functional properties, is presented. It based upon nanocomposite films consisting metal (Me = Ni, Fe, Mo, Sn) nanoparticles embedded into diamond-like (DLC). The main concept behind this that DLC inhibits the growth Me, resulting in formation small nanospheres instead layers or extended grains. In second step, DLC:Me substrates were used as catalyst templates CNTs by thermal...
Due to its extremely short timescale, the non-equilibrium melting of metals is exceptionally difficult probe experimentally. The knowledge mechanisms thus based mainly on results theoretical predictions. This work reports investigation ultrafast thin polycrystalline Pd films studied by optical laser pump – X-ray free-electron experiments and molecular-dynamics simulations. By acquiring diffraction snapshots with sub-picosecond resolution, we capture sample's atomic structure during...
The composition Au49Ag5.5Pd2.3Cu26.9Si16.3 (at.%) is of interest as the basis for development gold-based bulk metallic glasses application in jewellery. In-situ heating transmission electron microscopy (TEM) and differential scanning calorimetry (DSC, both conventional fast) are used to obtain a comprehensive characterization decomposition on melt-spun glass this composition. Linking TEM with DSC over range rates 0.083‒2000 K s‒1, allows sample temperature stage be calibrated. On up melting,...
We show that, using thermo-elastic processing, metallic-glass foils can be shaped, without being embrittled, into linear and annular wave springs. These springs exhibit an undulatory behaviour, unique to foils, in which under compression the number of arcs spring increases, increasing load-bearing capacity constant. evaluate performance limits springs, consider how behaviour exploited. The operate over same load-ranges as commercially available crystalline but have material volumes (and...
The effect of substituting Cu by elemental additions Ni or Co on the atomic structure Zr60Cu30Al10 ternary bulk metallic glass (BMG) is studied using high-energy synchrotron radiation X-ray diffraction. Analyses structural features in reciprocal and real space factors S(Q) pair-distribution functions (PDF) point to an increase disorder for Ni- Co-bearing quaternary alloys. This consistent with "confusion principle" since upon alloying initially nearly identical sizes Cu, diversify due local...
Perhaps the simplest method for creating metal nanoparticles on a substrate is by driving their self-assembly with thermal annealing of thin film. By properly tuning parameters one hopes to discover recipe that allows pre-determined design NP arrangement. However, treatment known detrimental effects and not really manufacturer's route choice when it comes large-scale applications. An alternative use microwave annealing, has never been applied processing, due high reflectance radiation at...
By exploiting the interferometric antireflection action of a probe sample, consisting diamond-like carbon (DLC) film grown on Si, combined with specific illumination spectrum, we designed and constructed an optical device for visual remote sensing radiation (either plasma or atomic oxygen) inspection adsorbed organic contamination as thin few molecular layers. The capabilities this new multi-indicator (VIMI) enable bare-eye color detection thickness changes order nanometers without...
The authors report on the production of stable nanostructured tetragonal and/or monoclinic ZrO2 nanopillars achieved by means oxygen plasma treatment ternary Zr74.7Cu19.7Nb5.6 glassy films. Zr-based metallic glass thin films were successfully deposited magnetron sputtering and subsequently subjected to for various exposure times. compositions oxidized determined Auger electron spectroscopy X-Ray photoelectron depth profiling while surface morphology was evaluated atomic force microscopy...
The authors report on the selective formation of pure tetragonal or mixed tetragonal-monoclinic ZrO2 films by means post-growth oxygen plasma treatment Zr-based Zr–Cu ternary quaternary metallic glassy (MG) containing minor additions Al, Ti, and Si. It came out that choice third and/or fourth element in MG template, conjunction with conditions time, determine crystal structure surface morphology films. found oxidation template resulted film rather rough surface, whereas case Al smooth...