Scheu, C.: Grain growth and dewetting of thin Al films on (0001) Al2O3 substrates. 3 Phase, Interface, Component Systems (PICS), Centre Interdisciplinaire de Nanoscience de Marseille (CINaM), Marseille, France (accepted)
Scheu, C.: In-situ Transmission Electron Microscopy Observation of Heat-Induced Structural Changes of 3D Nb3O(OH) Networks. Electronic Materials and Applications 2017 (EMA), Orlando, FL, USA (2017)
Scheu, C.: Insights into structural and functional properties of Nb3O7(OH) and TiO2 nanoarrays. European Materials Research Society’s (EMRS) Fall Meeting, Warsaw, Poland (2016)
Scheu, C.: Transmission electron microscopy – a versatile tool to study the microstructure of HT-PEMFC. Materials Science 2016, Atlanta, GA, USA (2016)
Scheu, C.: Insights into structural and functional properties of nano-structured electrodes for energy and fuel generating devices. Talk at Helmholtz‐Zentrum Geesthacht, Geesthacht, Germany (2016)
Scheu, C.: Correlative STEM & Atom Probe Tomography (ATP): Insights in the k-carbide/austenite interface. Workshop on “New trends in electron microscopy”, Ringberg Castle, Kreuth am Tegernsee, Germany (2016)
Hengge, K.; Heinzl, C.; Perchthaler, M.; Scheu, C.: Insights into degradation processes in WO3-x based anodes of HT-PEMFCs via electron microscopic techniques. Fuel Cells Science and Technology 2016 , Glasgow, Scotland, UK (2016)
Folger, A.; Wisnet, A.; Scheu, C.: Defects in as-grown vs. annealed rutile titania nanowires and their effect on properties. EMC 2016, 16th European Microscopy Congress, Lyon, France (2016)
Hengge, K.; Heinzl, C.; Perchthaler, M.; Welsch, M. T.; Scheu, C.: Template-free synthesized high surface area 3D networks of Pt on WO3-x – a promising alternative for H2 oxidation in fuel cell application. 2016 MRS Fall Meeting, Boston, MA, USA (2016)
Hieke, S. W.; Dehm, G.; Scheu, C.: Investigation of solid state dewetting phenomena of epitaxial Al thin films on sapphire using electron microscopy. The 16th European Microscopy Congress (EMC 2016), Lyon, France (2016)
This project studies the mechanical properties and microstructural evolution of a transformation-induced plasticity (TRIP)-assisted interstitial high-entropy alloy (iHEA) with a nominal composition of Fe49.5Mn30Co10Cr10C0.5 (at. %) at cryogenic temperature (77 K). We aim to understand the hardening behavior of the iHEA at 77 K, and hence guide the future design of advanced HEA for cryogenic applications.
Interstitial alloying in high-entropy alloys (HEAs) is an important strategy for tuning and improving their mechanical properties. Strength can be increased due to interstitial solid-solution hardening, while interstitial alloying can simultaneously affect, e.g., stacking fault energies (SFEs) and thus trigger different deformation mechanisms…
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…
In this project, we aim at significantly enhancing the strength-ductility combination of quinary high-entropy alloys (HEAs) with five principal elements by simultaneously introducing interstitial C/N and the transformation induced plasticity (TRIP) effect. Thus, a new class of alloys, namely, interstitially alloyed TRIP-assisted quinary (five-component) HEAs is being developed.
The Magnetic Moment Tensor Potentials (mMTPs) are a class of machine-learning interatomic potentials, which could accurately reproduce both vibrational and magnetic degrees of freedom as provided, e.g., from first-principles calculations [1]. Application to prototypical bcc iron has demonstrated that these potentials are capable to quantitatively…
The worldwide developments of electric vehicles, as well as large-scale or grid-scale energy storage to compensate the intermittent nature of renewable energy generation has generated a surge of interest in battery technology. Understanding the factors controlling battery capacity and, critically, their degradation mechanisms to ensure long-term…
In this project, we aim to enhance the mechanical properties of an equiatomic CoCrNi medium-entropy alloy (MEA) by interstitial alloying. Carbon and nitrogen with varying contents have been added into the face-centred cubic structured CoCrNi MEA.
The aim of this project is to correlate the point defect structure of Fe1-xO to its mechanical, electrical and catalytic properties. Systematic stoichiometric variation of magnetron-sputtered Fe1-xO thin films are investigated regarding structural analysis by transition electron microscopy (TEM) and spectroscopy methods, which can reveal the defect…