Nikolov, S.; Raabe, D.; Roters, F.: A Constitutive Model for Glassy Polymers with Shear Transformation Zones Plasticity and Reptation-Based Viscoelasticity. MMM Third International Conference Multiscale Materials Modeling, Freiburg, Germany (2006)
Zaafarani, N.; Roters, F.; Raabe, D.: A Study of Deformation and texture Evolution during Nanoindentation in a Cu Single Crystal using Phenomenological and Physically-Based Crystal Plasticity FE Models. MMM Third International Conference Multiscale Materials Modeling, Freiburg, Germany (2006)
Kobayashi, S.; Zaefferer, S.; Raabe, D.: Relative Importance of Nucleation vs. Growth for Recrystallisation of Particle-containing Fe3Al Alloys. Fundamentals of Deformation and Annealing Symposium, Manchester, UK (2006)
Zaafarani, N.; Roters, F.; Raabe, D.: Recent Progress in the 3D Experimentation and Simulation of Nanoindents. Symposium Fundamentals of Deformation and Annealing, Manchester, UK (2006)
Bieler, T. R.; Crimp, M. A.; Ma, A.; Roters, F.; Raabe, D.: A Slip Interaction Based Measure of Damage Nucleation in Grain Boundaries. 3rd International Conference on Multiscale Materials Modeling, Freiburg, Germany (2006)
Raabe, D.: Neues aus der Eisenzeit - Simulationen und Experimente in der Kristallmechanik und frischer Hummer. Kolloquium an der Bundesantalt für Materialforschung (BAM), Berlin, Germany (2006)
Prymak, O.; Stein, F.; Palm, M.; Frommeyer, G.; Raabe, D.: Konstitutionsuntersuchungen im System Nb-Cr-Al: Erste Ergebnisse und weitere Planungen. Workshop: The Nature of Laves Phases VII, MPI für Metallforschung Stuttgart, Germany (2006)
Zambaldi, C.; Roters, F.; Raabe, D.: Spherical indentation modeling for the investigation of primary recrystallization in a single-crystal nickel-base superalloy. Plasticity, Halifax, Canada (2006)
Zaafarani, N.; Raabe, D.; Singh, R. N.; Roters, F.; Zaefferer, S.; Zambaldi, C.: 3D EBSD characterization and crystal plasticity FE simulation of the texture and microstructure below a nanoindent in Cu. Plasticity Conference 2006, Halifax, Canada (2006)
Raabe, D.: Recent Advances in Crystal Mechanics and Chitin Composites. Physics Colloquium at the Physics Department of the Technical University Dresden, Dresden, Germany (2006)
Godara, A.; Raabe, D.: Strain localization and microstructure evolution during plastic deformation of fiber reinforced polymer composites investigated by digital image correlation. Department Seminar, MPIE, Düsseldorf (Germany) (2006)
Bastos, A.; Zaefferer, S.; Raabe, D.: Orientation microscopy on electrodeposited samples. 13th Conference and Workshop on Electron Backscatter Diffraction, Oxford, UK (2006)
Raabe, D.: Advances in Constitutive Modeling in Crystal Plasticity FEM. Colloquium Lecture at the Department for Aeronautics at the Massachusetts Institute of Technology, Cambridge, USA (2006)
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.
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.
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…
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.
We have studied a nanocrystalline AlCrCuFeNiZn high-entropy alloy synthesized by ball milling followed by hot compaction at 600°C for 15 min at 650 MPa. X-ray diffraction reveals that the mechanically alloyed powder consists of a solid-solution body-centered cubic (bcc) matrix containing 12 vol.% face-centered cubic (fcc) phase. After hot compaction, it consists of 60 vol.% bcc and 40 vol.% fcc. Composition analysis by atom probe tomography shows that the material is not a homogeneous fcc–bcc solid solution