Kumar, K. S.; Stein, F.; Palm, M.: An in-situ electron microscopy study of microstructural evolution in a Co–Co2Nb binary alloy. MRS Fall Meeting 2008, Boston, MA, USA (2008)
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. 20th Annual Rio Grande Symposium on Advanced Materials 2008, Albuquerque, NM, USA (2008)
Kumar, K. S.; Stein, F.; Palm, M.: Preliminary in-situ TEM observations of phase transformations in a Co–15 at.% Nb alloy. Workshop "The Nature of Laves Phases XI", MPIE Düsseldorf, Germany (2008)
Stein, F.; Ishikawa, S.; Takeyama, M.; Kumar, K. S.; Palm, M.: Phase equilibria in the Cr–Ti system studied by diffusion couples and equilibrated two-phase alloys. Workshop "The Nature of Laves Phases XI", MPI für Eisenforschung, Düsseldorf, Germany (2008)
Stein, F.; Prymak, O.; Dovbenko, O. I.; Palm, M.: Phase equilibria of Laves phases in ternary Nb–X–Al systems with X = Cr, Fe, Co. Discussion Meeting on Thermodynamics of Alloys - TOFA 2008, Krakow, Poland (2008)
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. American Conference on Neutron Scattering (ACNS 2008), Santa Fe, New Mexico, USA (2008)
Krein, R.; Palm, M.: The influence of Cr and B additions on the mechanical properties and oxidation behaviour of L21-ordered Fe–Al–Ti based aluminides at high temperature. TMS Annual Meeting 2008, New Orleans, LA, USA (2008)
Brunetti, G.; Krein, R.; Grosdidier, T.; Palm, M.: Evaluation of the Brittle-to-Ductile Transition Temperature (BDTT)and the fracture modes in Fe–Al–X alloys. 4th Discussion Meeting on the Development of Innovative Iron Aluminium Alloys, Interlaken, Switzerland (2007)
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.
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 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.
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.
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.