Schneider, P.; Sigel, R.; Lange, M. M.; Beier, F.; Renner, F. U.; Erbe, A.: Activation and fluoride-assisted phosphating of aluminium silicon coated steel. ACS Applied Materials and Interfaces 5 (10), pp. 4224 - 4232 (2013)
Kawano, T.; Renner, F. U.: Studies on Wetting Behaviour of Hot-dip Galvanizing Process by use of Model Specimens with Tailored Surface Oxides. Surf. Int. Anal. 44 (8), pp. 1009 - 1012 (2012)
Kawano, T.; Renner, F. U.: Tailoring Model Surface and Wetting Experiment for a Fundamental Understanding of Hot-dip Galvanizing. ISIJ International 51, 10, pp. 1703 - 1709 (2011)
Valtiner, M.; Ankah, G. N.; Bashir, A.; Renner, F. U.: Atomic force microscope imaging and force measurements at electrified and actively corroding interfaces: Challenges and novel cell design. Review of Scientific Instruments 82 (2), pp. 023703-1 - 023703-8 (2011)
Naraparaju, R.; Christ, H.-J.; Renner, F. U.; Kostka, A.: Effect of shot-peening on the oxidation behaviour of boiler steels. Oxidation of Metals 76 (3-4), pp. 233 - 245 (2011)
Borissov, D.; Pareek, A.; Renner, F. U.; Rohwerder, M.: Electrodeposition of Zn and Au–Zn alloys at low temperature in an ionic liquid. Physical Chemistry Chemical Physics 12 (9), pp. 2059 - 2062 (2010)
Gründer, Y.; Renner, F. U.; Lee,, T. L.: The electrodeposition of copper onto UHV-prepared GaAs(001) surfaces. Surface Science 603 (17), pp. L105 - L108 (2009)
Naraparaju, R.; Christ, H.-J.; Renner, F. U.; Kostka, A.: Dislocation Engineering and its effect on the oxidation behaviour. Materials at High Temperatures 29, pp. 116 - 122 (2012)
Duarte, M. J.; Brinckmann, S.; Renner, F. U.; Dehm, G.: Nanomechanical testing under environmental conditins of Fe-based metallic glasses. 22st International Symposium on Metastable Amorphous and Nanostructured Materials, ISMANAM 2015, Paris, France (2015)
Oxides find broad applications as catalysts or in electronic components, however are generally brittle materials where dislocations are difficult to activate in the covalent rigid lattice. Here, the link between plasticity and fracture is critical for wide-scale application of functional oxide materials.
In this project we study - together with the department of Prof. Neugebauer and Dr. Sandlöbes at RWTH Aachen - the underlying mechanisms that are responsible for the improved room-temperature ductility in Mg–Y alloys compared to pure Mg.
The wide tunability of the fundamental electronic bandgap by size control is a key attribute of semiconductor nanocrystals, enabling applications spanning from biomedical imaging to optoelectronic devices. At finite temperature, exciton-phonon interactions are shown to exhibit a strong impact on this fundamental property.
Enabling a ‘hydrogen economy’ requires developing fuel cells satisfying economic constraints, reasonable operating costs and long-term stability. The fuel cell is an electrochemical device that converts chemical energy into electricity by recombining water from H2 and O2, allowing to generate environmentally-friendly power for e.g. cars or houses…
The project Hydrogen Embrittlement Protection Coating (HEPCO) addresses the critical aspects of hydrogen permeation and embrittlement by developing novel strategies for coating and characterizing hydrogen permeation barrier layers for valves and pumps used for hydrogen storage and transport applications.
Efficient harvesting of sunlight and (photo-)electrochemical conversion into solar fuels is an emerging energy technology with enormous promise. Such emerging technologies depend critically on materials systems, in which the integration of dissimilar components and the internal interfaces that arise between them determine the functionality.
In this project, we work on a generic solution to design advanced high-entropy alloys (HEAs) with enhanced magnetic properties. By overturning the concept of stabilizing solid solutions in HEAs, we propose to render the massive solid solutions metastable and trigger spinodal decomposition. The motivation for starting from the HEA for this approach…