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)
Low dimensional electronic systems, featuring charge density waves and collective excitations, are highly interesting from a fundamental point of view. These systems support novel types of interfaces, such as phase boundaries between metals and charge density waves.
About 90% of all mechanical service failures are caused by fatigue. Avoiding fatigue failure requires addressing the wide knowledge gap regarding the micromechanical processes governing damage under cyclic loading, which may be fundamentally different from that under static loading. This is particularly true for deformation-induced martensitic…
In this project we conduct together with Dr. Sandlöbes at RWTH Aachen and the department of Prof. Neugebauer ab initio calculations for designing new Mg – Li alloys. Ab initio calculations can accurately predict basic structural, mechanical, and functional properties using only the atomic composition as a basis.
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.
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.
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.
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…