Wang, X.; Grundmeier, G.: Thin multifunctional silver/fluorocarbon plasma polymer nanocomposite films on metals. The 9th International Conference on Nanostructured Materials, Rio de Janeiro, Brazil (2008)
Wang, X.; Grundmeier, G.: Combined spectroscopic, microscopic and electrochemical analysis of release properties of Ag-nanoparticles embedded in fluorocarbon plasma polymer films. The 58th Annual Meeting of the International Society of Electrochemistry, Banff, Canada (2007)
Wang, X.; Grundmeier, G.: Understanding of the Barrier and Release Properties of Thin Model Ag/HDFD-Plasma Polymer Nanocomposite Films. International Conference on Metallurgical Coatings and Thin Films (ICMCTF), San Diego, CA, USA (2007)
Grundmeier, G.; Wang, X.; Barranco, V.; Ebbinghaus, P.: Structure and barrier properties of thin plasma polymers and metal/plasma polymer nanocomposite film. ACHEMA, Frankfurt a. M., Germany (2006)
Wang, X.; Grundmeier, G.: Investigation of Structure and Stability of Silver Nanoparticles in Fluorocarbon Plasma Polymer Films. 13. Bundesdeutsche Fachtagung für Plasmatechnologie, Bochum, Germany (2007)
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…
Multiple Exciton Generation (MEG) is a promising pathway towards surpassing the Shockley-Queisser limit in solar energy conversion efficiency, where an incoming photon creates a high energy exciton, which then decays into multiple excitons.
In this project, we aim to design novel NiCoCr-based medium entropy alloys (MEAs) and further enhance their mechanical properties by tuning the multiscale heterogeneous composite structures. This is being achieved by alloying of varying elements in the NiCoCr matrix and appropriate thermal-mechanical processing.
The exploration of high dimensional composition alloy spaces, where five or more alloying elements are added at near equal concentration, triggered the development of so-called high entropy (HEAs) or compositionally complex alloys (CCAs). This new design approach opened vast phase and composition spaces for the design of new materials with advanced…
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…
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…
Nickel-based alloys are a particularly interesting class of materials due to their specific properties such as high-temperature strength, low-temperature ductility and toughness, oxidation resistance, hot-corrosion resistance, and weldability, becoming potential candidates for high-performance components that require corrosion resistance and good…