Varnik, F.: Complex rheology of a simple model glass: Shear thinning, dynamic versus static yielding and flow heterogeneity. Institut für theoretische Physik, University of Düsseldorf, Germany (2005)
Varnik, F.: Stress fluctuations, static yield stress and shear banding in a flowing Lennard-Jones glass. SPIE conference on Fluctuation and Noise in Materials, Maspalomas, Gran Canaria, Spain (2004)
Varnik, F.: The static yield stress and flow heterogeneity in a model glass: A molecular dynamics study. International workshop on dynamics in viscous liquids, München, Germany (2004)
Varnik, F.: Etude par dynamique moléculaire de l’écoulement dans les systèmes amorphes. Laboratoire de Physique de la Matière Condensée, Université Claude Bernard Lyon 1, Lyon, France (2004)
Varnik, F.: Yield stress and shear banding in a flowing Lennard-Jones glass: A molecular dynamics study. Seminar talk at Laboratoire de Physico-Chimie Théorique, ESPCI, Paris, France (2003)
Varnik, F.: Rhéologie non-linéaire d’un modèle simple: La bande de cisaillement et la dynamique locale. Deuxième Journée de Modélisation Moléculaire des Polymères et des Matériaux Amorphes, Université Paris Sud, Orsay, France (2003)
Varnik, F.: Confinement effects on the slow dynamics of a supercooled polymer melt: Rouse modes and the incoherent scattering function. 2nd International Workshop on Dynamics in Confinement, Grenoble, France (2003)
Varnik, F.: Résultats de simulations de dynamique moléculaire sur la dynamique vitreuse d’un système de polymères. Seminar at Laboratoire de Chimie-Physique, Université Paris Sud, Orsay, France (2001)
Varnik, F.: Effects of the confinement on the glass transition in thin polymer films. 28th International Conference on Dynamical Properties of Solids (DYPROSO XXVIII), Kerkrade, The Netherlands (2001)
Varnik, F.: Measurements of moments for diffracted laser beams: Comparison with theory. 4-th International Conference on Laser Beam and Optics Characterization (LBOC), München, Germany (1997)
Water electrolysis has the potential to become the major technology for the production of the high amount of green hydrogen that is necessary for its widespread application in a decarbonized economy. The bottleneck of this electrochemical reaction is the anodic partial reaction, the oxygen evolution reaction (OER), which is sluggish and hence…
This project targets to exploit or develop new methodologies to not only visualize the 3D morphology but also measure chemical distribution of as-synthesized nanostructures using atom probe tomography.
The group aims at unraveling the inner workings of ion batteries, with a focus on probing the microstructural and interfacial character of electrodes and electrolytes that control ionic transport and insertion into the electrode.
The full potential of energy materials can only be exploited if the interplay between mechanics and chemistry at the interfaces is well known. This leads to more sustainable and efficient energy solutions.
In order to develop more efficient catalysts for energy conversion, the relationship between the surface composition of MXene-based electrode materials and its behavior has to be understood in operando. Our group will demonstrate how APT combined with scanning photoemission electron microscopy can advance the understanding of complex relationships…
To advance the understanding of how degradation proceeds, we use the latest developments in cryo-atom probe tomography, supported by transmission-electron microscopy. The results showcase how advances in microscopy & microanalysis help bring novel insights into the ever-evolving microstructures of active materials to support the design of better…