Luo, W.; Kirchlechner, C.; Dehm, G.; Stein, F.: A New Method to Study the Composition Dependence of Mechanical Properties of Laves Phases. Intermetallics 2015, Educational Center Kloster Banz, Bad Staffelstein, Germany (2015)
Hieke, S. W.; Dehm, G.; Scheu, C.: Solid state dewetting phenomena of epitaxial Al thin films on sapphire (α-Al2O3). 2nd International Multidisplinary Microscopy Congress (InterM 2014), Oludeniz, Fethiye, Turkey (2014)
Jaya, B. N.; Kirchlechner, C.; Dehm, G.: Fracture toughness testing of brittle materials at the micron-scale. Thin Film & Small Scale Mechanical Behavior - Gordon Research Conference, Boston, MA, USA (2014)
Jeon, J. B.; Imrich, P. J.; Dehm, G.: Dislocation network formation in coherent twin boundary in Cu: Atomistic simulations. Schöntal symposium on dislocation-based plasticity, Bad Schöntal, Germany (2014)
Djaziri, S.; Li, Y.; Goto, S.; Kirchlechner, C.; Raabe, D.; Dehm, G.: Microstructural characterization of cold-drawn pearlitic steel wires at the nanometer scale. The Thin Film & Small Scale Mechanical Behavior Gordon Research Conference, Waltham, MA, USA (2014)
Fink, C.; Brinckmann, S.; Dehm, G.: Nanotribology and Microstructure Evolution in Pearlite. 3rd European Symposium on Friction, Wear and Wear Protection, Karlsruhe, Germany (2014)
Malyar, N.; Dehm, G.; Kirchlechner, C.: Dislocation motion in bi-crystals with a specific grain boundary orientation studied by in situ SEM and in situ µLaue diffraction. Conference: Thin Film & Small Scale Mechanical Behavior Gordon Research , Waltham, MA, USA (2014)
Malyar, N.; Dehm, G.; Kirchlechner, C.: Dislocation motion in bi-crystals with a specific grain boundary orientation studied by in situ SEM and in situ µLaue diffraction. Seminar: Thin Film & Small Scale Mechanical Behavior Gordon Research , Waltham, MA, USA (2014)
Philippi, B.; Kirchlechner, C.; Schießl, A.; Schingale, A.; Dehm, G.: Improving lead-free solders by resolving mechanical properties at the microstructure length scale. Thin Film & Small Scale Mechanical Behavior 2014, Gordon Research Conference, Waltham, MA, USA (2014)
Jaya, B. N.; Kirchlechner, C.; Dehm, G.: Fracture behavior of gradient PtNiAl bond coats at the micron-scale using in-situ microbeam bend studies. 13th European Nanomechanical User Group Meeting, Oxford, UK (2013)
Marx, V. M.; Kirchlechner, C.; Zizak, I.; Cordill, M. J.; Dehm, G.: Deformation behavior of thin Cu/Cr films on polyimide. Small Scale Plasticity School, Cargèse, Corsica, France (2013)
Marx, V. M.; Kirchlechner, C.; Zizak, I.; Cordill, M. J.; Dehm, G.: Adhesion behavior of Cu–Cr thin films on polyimide substrate. ECI Conference "Nano- and Micro-Mechanical Testing in Materials Research and Development IV", Olhão, Portugal (2013)
Philippi, B.; Schießl, A.; Schingale, A.; Dehm, G.: Micromechanical investigation of solder joints in automotive microelectronics. GDRi CNRS MECANO General Meeting on the Mechanics of Nano-Objects, MPIE, Düsseldorf, Germany (2013)
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.
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.
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.
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.