Stratmann, M.; Kim, K. T.; Streckel, H.: Neue experimentelle Verfahren zur Untersuchung der atmosphärischen Korrosion von mit dünnen Elektrolytfilmen belegten Metallen. Zeitschrift für Metallkunde 81, 10, pp. 715 - 725 (1990)
Stratmann, M.; Streckel, H.: On the Atmospheric Corrosion of Metals, which are covered with Thin Electrolyte Layers. Part 1: Verification of the Experimental Technique. Corrosion Science 30 (6-7), pp. 681 - 696 (1990)
Stratmann, M.; Streckel, H.: On the Atmospheric Corrosion of Metals, which are covered with Thin Electrolyte Layers. Part 2: Experimental Results. Corrosion Science 30 (6-7), pp. 697 - 714 (1990)
Stratmann, M.; Streckel, H.; Kim, K.-t.; Crockett, S.: On the atmospheric corrosion of metals, which are covered with thin electrolyte layers. Part 3: The measurement of polarisation curves on metal surfaces which are covered by thin electrolyte layers. Corrosion Science 30 (6-7), pp. 715 - 734 (1990)
Volmer, M.; Stratmann, M.; Viefhaus, H.: Electrochemical and Electron Spectroscopic Investigations of Iron Surfaces Modified with Thiols. Surface and Interface Analysis 16, 1-12, pp. 278 - 282 (1990)
Wolpers, M.; Viefhaus, H.; Stratmann, M.: SEM and SAM Imaging of Silane LB-Films on Metallic Substrates. Applied Surface Science 45, 2, pp. 167 - 170 (1990)
Stratmann, M.; Hoffmann, K.: In-Situ Mößbauer Spectroscopic Study of Reactions within Rust Layers. Corrosion Science 29 (11-12), pp. 1329 - 1352 (1989)
Stratmann, M.; Hoffmann, K.: In situ Möβbauer spectroscopic study of reactions within rust layers. Corrosion Science 29 (11-12), pp. 1329 - 1352 (1989)
Volmer, M.; Stratmann, M.; Viefhaus, H.: Interaction between S-organic compounds and iron surfaces. Fresenius’ Zeitschrift für Analytische Chemie 333 (4-5), p. 545 (1989)
Stratmann, M.; Streckel, H.: The Investigation of the Corrosion of Metal Surfaces, Covered with Thin Electrolyte Layers - A New Experimental Technique. Berichte Bunsengesellschaft Physikalische Chemie 92 (11), pp. 1244 - 1250 (1988)
Volmer, M.; Czodrowski, B.; Stratmann, M.: Electron Spectroscopic and Electrochemical Investigations of Chemically Modified Iron Surfaces. Berichte Bunsengesellschaft Physikalische Chemie 92 (11), pp. 1335 - 1341 (1988)
Stratmann, M.: The investigation of the corrosion properties of metals, covered with adsorbed electrolyte layers-A new experimental technique. Corrosion Science 27 (8), pp. 869 - 872 (1987)
Stratmann, M.; Bohnenkamp, K.; Engell, H.-J.: Investigations Toward Understanding of the Atmospheric Corrosion Processes of Pure Iron. Materials and Corrosion - Werkstoffe und Korrosion 34 (12), pp. 604 - 612 (1983)
Stratmann, M.; Engell, H.-J.: An Electrochemical and Magnetic Study of Phase-Transitions in Rust-Layers during the Atmospheric Corrosion of Iron. Journal of the Electrochemical Society 130 (8), p. C313 (1983)
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.
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.
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.
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…