Fushimi, K.; Stratmann, M.; Hassel, A. W.: Electropolishing of NiTi shape memory alloys in methanolic H2SO4. Electrochim. Acta 52, pp. 1290 - 1295 (2006)
Jeliazova, Y.; Kayser, M.; Mildner, B.; Hassel, A. W.; Diesing, D.: Temperature stability of thin anodic oxide films in metal/insulator/metal structures: A comparison between tantalum and aluminium oxide. Thin Solid Films 500, pp. 330 - 335 (2006)
Lill, K. A.; Hassel, A. W.: A combined µ-mercury-reference-/ gold-counter-electrode system for microelectrochemical applications. J. Sol. State Electrochem. 10, pp. 941 - 946 (2006)
Milenkovic, S.; Hassel, A. W.; Schneider, A.: Effect of the Growth Conditions on the Spatial Features of Re Nanowires Produced by Directional Solidification. Nano Letters 6 (4), pp. 794 - 799 (2006)
Smith, A.J.; Stratmann, M.; Hassel, A. W.: Investigation of the effect of impingement angle on tribocorrosion using single impacts. Electrochim. Acta 51, pp. 6521 - 6526 (2006)
Hassel, A. W.; Bello-Rodriguez, B.; Milenkovic, S.; Schneider, A.: Electrochemical Production of Nanopore Arrays into a Nickel Aluminium Alloy. Electrochimica Acta 50, pp. 3033 - 3039 (2005)
Tan, K. S.; Hassel, A. W.; Stratmann, M.: Design and construction of a micro-indenter for tribological investigations. Mat.-Wiss. Werkstofftech. 36, pp. 13 - 17 (2005)
van der Kloet, J.; Hassel, A. W.; Stratmann, M.: Effect of Pretreatment on the Intermetallics in Aluminium Alloy 2024-T3. Zeitschrift für Physikalische Chemie 219, pp. 1505 - 1518 (2005)
Vander Kloet, J.; Hassel, A. W.; Stratmann, M.: Effect of pretreatment on the intermetallics in aluminum alloy 2024-T3. Zeitschrift fur Physikalische Chemie-International Journal of Research in Physical Chemistry & Chemical Physics 219 (11), pp. 1505 - 1518 (2005)
Bonk, S.; Wicinski, M.; Hassel, A. W.; Stratmann, M.: Electrochemical characterizations of precipitates formed on zinc in alkaline sulphate solution with increasing pH values. Electrochemistry Communicatios 6, 8, pp. 800 - 804 (2004)
van der Kloet, J.; Schmidt, W.; Hassel, A. W.; Stratmann, M.: The Role of Chromate in Filiform Corrosion Inhibition. Electrochimica Acta 49 (10), pp. 1675 - 1685 (2004)
Hassel, A. W.; Stratmann, M.: Microscopic and nanoscopic aspects of corrosion and corrosion protection. Electrochimica Acta 48, 9, pp. 1093 - 1324 (2003)
van der Kloet, J.; Schmidt, W.; Hassel, A. W.; Stratmann, M.: The Role of Chromate in Filiform Corrosion Inhibition. Electrochimica Acta 48 (9), pp. 1211 - 1222 (2003)
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…