Biedermann, P. U.; Torres, E.; Laaboudi, L.; Isik-Uppenkamp, S.; Rohwerder, M.; Blumenau, A. T.: Cathodic Delamination by a Combined Computational and Experimental Approach: The Aklylthiol/Gold Model System. Multiscale Material Modeling of Condensed Matter, MMM2007, St. Feliu de Guixols, Spain (2007)
Fenster, J. C.; Rohwerder, M.; Hassel, A. W.: Intensity Modulated Photo Electrochemistry of Laser Irradiated Semiconductors. 6th International Symposium on Electrochemical Micro & Nanosystem Technologies, Bonn, Germany (2006)
Park, E.; Hüning, B.; Borodin, S.; Rohwerder, M.; Spiegel, M.: Initial oxidation of Fe-Cr alloys: In situ STM amd ex-situ SEM studies. 6th International Conference on the Microscopy of Oxidation, Birmingham, UK (2005)
Satori, H.; Hassel, A. W.; Rohwerder, M.; Stratmann, M.: Finite Element Simulation of the Cathodic Delamination Process of Coatings on Metal Surfaces. 55th Meeting of the International Society of Electrochemistry, Thessaloniki, Greece (2004)
Paliwoda-Porebska, G.; Michalik, A.; Rohwerder, M.: Conducting polymer coatings for corrosion protection: Pros and cons. Gordon Research Conference on Aqueous Corrosion, New London, NH, USA (2004)
Baumert, B.; Stratmann, M.; Rohwerder, M.: Formability of Ultra-Thin Plasma-Polymer Films Deposited on Metal Sheet: Mesoscopic and Nanoscopic Aspects of Defect Formation. Symposium on Thin Films - Stresses and Mechanical Properties X held at the 2003 MRS Fall Meeting, Boston, MA, USA (2003)
Ehahoun, H.; Stratmann, M.; Rohwerder, M.: Charged Langmuir-Blodgett Films on a metallic Surface: Composition and Structure of the Interface. ISE2002, Düsseldorf, Germany (2002)
van der Kloet, J.; Hassel, A. W.; Rohwerder, M.; Stratmann, M.: Understanding the Role of Copper in FFC on aluminium alloys. 53rd Meeting of the International Society of Electrochemistry, Düsseldorf, Germany (2002)
Hausbrand, R.; Grundmeier, G.; Stratmann, M.; Rohwerder, M.: Design of materials with improved delamination behaviour: The system zinc-magnesium. NH Gordon Conference on Aqueous Corrosion, New London, NH, USA (2002)
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 employ a metastability-engineering strategy to design bulk high-entropy alloys (HEAs) with multiple compositionally equivalent high-entropy phases.
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 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.
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…