Hou, J.; Zhang, Z.; Preis, W.; Sitte, W.; Dehm, G.: Electrical properties and structure of grain boundaries in n-conducting BaTiO3 ceramics. Journal of the European Ceramic Society 31 (5), pp. 763 - 771 (2011)
Cha, L.; Clemens, H.; Dehm, G.: Microstructure evolution and mechanical properties of an intermetallic Ti–43.5Al–4Nb–1Mo–0.1B alloy after ageing below the eutectoid temperature. International Journal of Materials Research 102 (6), pp. 703 - 708 (2011)
Heinz, W.; Pippan, R.; Dehm, G.: Investigation of the fatigue behavior of Al thin films with different microstructure. Materials Science and Engineering A: Structural Materials Properties Microstructure and Processing 527 (29-30), pp. 7757 - 7763 (2010)
Fischer, F. D.; Cha, L.; Dehm, G.; Clemens, H. J.: Can local hot spots induce α2/γ lamellae during incomplete massive transformation of γ-TiAl alloys? Intermetallics 18 (5), pp. 972 - 976 (2010)
Fischer , F. D.; Waitz, T.; Scheu, C.; Cha, L.; Dehm, G.: Study of nanometer-scaled lamellar microstructure in a Ti–45Al–7.5Nb alloy – Experiments and modeling. Intermetallics 18 (4), pp. 509 - 517 (2010)
Matoy, K.; Detzel, T.; Müller , M.; Motz, C.; Dehm, G.: Interface fracture properties of thin films studied by using the micro-cantilever deflection technique. Surface and Coatings Technology 204 (6-7), pp. 878 - 881 (2009)
Dehm, G.: Miniaturized single-crystalline fcc metals deformed in tension: New insights in size-dependent plasticity. Progress in Materials Science 54 (6), pp. 664 - 688 (2009)
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 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.
This study investigates the mechanical properties of liquid-encapsulated metallic microstructures created using a localized electrodeposition method. By encapsulating liquid within the complex metal microstructures, we explore how the liquid influences compressive and vibrational characteristics, particularly under varying temperatures and strain…
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 the use of a combinatorial experimental approach to design advanced multicomponent multi-functional alloys with rapid alloy prototyping. We use rapid alloy prototyping to investigate five multicomponent Invar alloys with 5 at.% addition of Al, Cr, Cu, Mn and Si to a super Invar alloy (Fe63Ni32Co5; at.%), respectively…