Cimalla, V.; Röhlig, C.-C.; von Pezoldt, J.; Niebelschütz, M.; Ambacher, O.; Brückner, K.; Hein, M.; Weber, J.; Milenkovic, S.; Smith, A. J.et al.; Hassel, A. W.: Nanomechanics of single crystalline tungsten nanowires. J. Nanomater. 2008, pp. 638947 - 638956 (2008)
Lill, K. A.; Fushimi, K.; Seo, M.; Hassel, A. W.: Reactivity imaging of a passive ferritic FeAlCr steel. J Appl Electrochem. 38, pp. 1339 - 1345 (2008)
Rodriguez, B.B.; Smith, A.J.; Hassel, A. W.: Electrodeposition of gold on tungsten nanowires present in nial-w eutectics. Journal of Electroanalytical Chemistry 618 (1-2), pp. 11 - 16 (2008)
Abelev, E.; Smith, A. J.; Hassel, A. W.; Ein-Eli, Y.: Potassium Sorbate Solutions as Copper Chemical Mechanical Planarization (CMP) Based Slurries. Electrochim. Acta 52, pp. 5150 - 5158 (2007)
Brittman, S.; Smith, A. J.; Milenkovic, S.; Hassel, A. W.: Copper Nanowires and Silver Micropore Arrays from the Electrochemical Treatment of a Directionally Solidified Silver-Copper Eutectic. Electrochim. Acta 53, pp. 324 - 329 (2007)
Hassel, A. W.; Milenkovic, S.; Schürmann, U.; Greve, H.; Zaporojtchenko, V.; Adelung, R.; Faupel, F.: Model systems with tuneable geometry and surface functionality for a quantitative investigation of the Lotus effect. Langmuir 23, pp. 2091 - 2094 (2007)
Hassel, A. W.; Smith, A. J.: Single particle impact experiments for studying particle induced flow corrosion. Corrosion Science 49, pp. 231 - 239 (2007)
Kawakita, J.; Stratmann, M.; Hassel, A. W.: High Voltage Pulse Anodization of a NiTi Shape Memory Alloy. Journal of the Electrochemical Society 154 (6), pp. C294 - C298 (2007)
Mardare, A. I.; Wieck, A. D.; Hassel, A. W.: Microelectrochemical lithography: A method for direct writing of surface oxides. Electrochim. Acta 52, pp. 7865 - 7869 (2007)
Neelakantan, L.; Hassel, A. W.: Rotating disc electrode study of the electropolishing mechanism of NiTi in methanolic sulphuric acid. Electrochim. Acta 53, pp. 915 - 919 (2007)
Abelev, E.; Smith, A. J.; Hassel, A. W.; Ein Eli, Y.: Copper Repassivation Characteristics in Carbonate-Based Solutions. J. Electrochem. Soc. 153, pp. B337 - B343 (2006)
Akiyama, E.; Stratmann, M.; Hassel, A. W.: Discrete electrochemical transients of aluminium alloys generated by slurry jet impingement. J. Phys. D: Appl. Phys. 39, pp. 3157 - 3164 (2006)
Bello-Rodriguez, B.; Schneider, A.; Hassel, A. W.: Preparation of Ultramicroelectrode Array of Gold Hemispheres on Nanostructured NiAl-Re. J. Electrochem. Soc. 153 (1), pp. C33 - C36 (2006)
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…