Palm, M.; Engberding, N.; Stein, F.; Irsen, S. H.; Kelm, K.: Phases, Phase Transformations and Evolution of Microstructures in Al-rich TiAl. ISPMA 12, 12th International Symposium on Physics of Materials, Prague, Czech Republic (2011)
He, C.; Stein, F.; Palm, M.; Voß, S.: Thermodynamic Assessment of the Fe–Nb and Fe–Al–Nb System. 3rd Sino-German Symposium on Computational Thermodynamics and Kinetics and Their Applications to Solidification and Solid-State Phase Transformation, Xi’an, China (2011)
Stein, F.; Palm, M.; Voß, S.; He, C.; Dovbenko, O. I.; Prymak, O.: Experimental Investigations of Phases, Phase Equilibria, and Melting Behaviour in the Systems Fe–Al–Nb and Co–Al–Nb and Their Terminal Binary Systems. Calphad XL, Rio de Janeiro, Brazil (2011)
Stein, F.: Laves Phases in Binary and Ternary Transition-Metal-Based Systems: Stability, Structure and Disorder. MRS Fall Meeting 2010, Boston, MA, USA (2010)
Palm, M.; Engberding, N.; Stein, F.; Kelm, K.; Irsen, S. H.: Formation of Phases, Phase Stability and Evolution of the Microstructure in Al-rich Ti–Al Alloys. MRS Fall Meeting 2010, Boston, MA, USA (2010)
Voß, S.; Stein, F.; Palm, M.; Raabe, D.: Compositional Dependence of the Mechanical Properties of Laves Phases in the Fe–Nb(–Al) and Co–Nb(–Al) Systems. MRS Fall Meeting 2010, Boston, MA, USA (2010)
Voß, S.; Stein, F.; Palm, M.; Raabe, D.: Mechanical Properties of Laves Phases in the Systems Fe–Nb(–Al) and Co–Nb(–Al) using Polycrystalline, Single-Phase Material. Materiels Science and Engineering 2010 (MSE), Darmstadt, Germany (2010)
Stein, F.; Lazace, J.: Kinetics of the Peritectoid Decomposition of the Intermetallic Phase Nb2Co7. PTM 2010, Solid-Solid Phase Transformations in Inorganic Materials, Avignon, France (2010)
Friák, M.; Deges, J.; Krein, R.; Stein, F.; Palm, M.; Frommeyer, G.; Neugebauer, J.: Combining Experimental and Computational Methods in the Development of Fe3Al-based Materials. 5th Discussion Meeting on the Development of Innovative Iron Aluminium Alloys (FEAL 2009), Prague, Czech Republic (2009)
Stein, F.; Prymak, O.: Experimental Investigation of Phases and Phase Equilibria in the Ternary Fe–Al–Nb System. 5th Discussion Meeting on the Development of Innovative Iron Aluminium Alloys, Prague, Czech Republic (2009)
He, C.; Stein, F.; Palm, M.: Thermodynamic Assessment of the Nb–Co and Nb–Co–Al System. 2nd Sino-German Symposium on Computational Thermodynamics and Kinetics and Their Applications to Solidification, Kornelimünster, Aachen, Germany (2009)
Stein, F.; Prymak, O.; Dovbenko, O. I.; He, C.; Palm, M.; Schuster, J. C.: Investigation of Phase Diagrams of Laves Phase Containing Binary and Ternary Nb–TM(–Al) Systems with TM=Cr,Fe,Co. 2nd Sino-German Symposium on Computational Thermodynamics and Kinetics and Their Applications to Solidification, Kornelimünster, Aachen, Germany (2009)
Vogel, S. C.; Eumann, M.; Palm, M.; Stein, F.: Investigation of the crystallographic structure of the ε phase in the Fe–Al system by high-temperature neutron diffraction. TMS 2009 Annual Meeting, San Francisco, CA, USA (2009)
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.
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.
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.