Hickel, T.; Grabowski, B.; Neugebauer, J.: Temperature and magnetic field dependent properites of Ni2MnGa. Kolloquium zur Festkörpertheorie, Institut für Physik der Humboldt-Universtität zu Berlin, Berlin, Germany (2006)
Friák, M.; Neugebauer, J.: Anomalous equilibrium volume change of magnetic Fe–Al crystals. Seminar at Universität Erlangen-Nürnberg, Erlangen, Germany (2006)
Abu-Farsakh, H.; Neugebauer, J.: Incorporation of N at GaAs and InAs surfaces: An ab-initio study. Technische Universität Berlin, Berlin, Germany (2006)
Friák, M.; Neugebauer, J.: Anomalous equilibrium volume change of magnetic Fe–Al crystals. Institute of Physics of Materials, Czech Academy of Sciences, Brno, Czech Republic (2006)
Lymperakis, L.; Neugebauer, J.: Ab-initio based multiscale calculations of low-angle grain boundaries in Aluminum. DPG spring meeting, Dresden, Germany (2006)
Abu-Farsakh, H.; Dick, A.; Neugebauer, J.: Incorporation of N at GaAs and InAs surfaces. Deutsche Physikalische Gesellschaft Spring Meeting of the Division Condensed Matter, Dresden, Germany (2006)
Dick, A.; Neugebauer, J.: Probing of bulk band edges by STM: An ab initio analysis. Deutsche Physikalische Gesellschaft - Spring Meeting of the Division Condensed Matter, Dresden, Germany (2006)
Friák, M.; Neugebauer, J.: Anomalous equilibrium volume change of magnetic Fe–Al crystals. Deutsche Physikalische Gesellschaft Spring Meeting of the Division Condensed Matter, Dresden, Germany (2006)
Ismer, L.; Ireta, J.; Neugebauer, J.: On the balance of enthaplic and entropic contributions to the stability of the helix. Spring Meeting of the Division Condensed Matter, Dresden, Germany (2006)
Friák, M.; Neugebauer, J.: Anomalous equilibrium volume change of magnetic Fe–Al crystals. American Physica Society March Meeting, Baltimore, MD, USA (2006)
Hickel, T.; Grabowski, B.; Neugebauer, J.: Temperature and magnetic field dependent properites of Ni2MnGa. DPG Spring Meeting of the Division Condensed Matter, Dresden, Germany (2006)
Friák, M.; Neugebauer, J.: Anomalous equilibrium volume change of magnetic Fe–Al crystals. International workshop on Ab initio Description of Iron and Steel (ADIS2006), Status and future challenges, Ringberg Castle, Germany (2006)
Hickel, T.; Grabowski, B.; Neugebauer, J.: Temperature dependent properites of Shape-memory alloys. Physics Seminar of Loughborough University, Loughborough, UK (2006)
Lymperakis, L.; Neugebauer, J.: Electronic properties of non-stoichiometric dislocation cores in GaN. Materials Research Society fall meeting, Boston, MA, USA (2005)
Wahn, M.; Neugebauer, J.: The Bandgaps of GaN and InN in Zinc-blende and Wurtzite Phase: DFT Calculations Using the Exact Exchange (EXX) Functional. Workshop Forschergruppe Bremen, Bad Bederkesa, Germany (2005)
Hickel, T.; Neugebauer, J.: Temperature-dependent ab initio investigation of the martensitic phase transition in magnetic SMAs. Kickoff-Workshop of SPP1239, Dresden, Germany (2005)
Hydrogen in aluminium can cause embrittlement and critical failure. However, the behaviour of hydrogen in aluminium was not yet understood. Scientists at the Max-Planck-Institut für Eisenforschung were able to locate hydrogen inside aluminium’s microstructure and designed strategies to trap the hydrogen atoms inside the microstructure. This can…
Oxidation and corrosion of noble metals is a fundamental problem of crucial importance in the advancement of the long-term renewable energy concept strategy. In our group we use state-of-the-art electrochemical scanning flow cell (SFC) coupled with inductively coupled plasma mass spectrometer (ICP-MS) setup to address the problem.
For understanding the underlying hydrogen embrittlement mechanism in transformation-induced plasticity steels, the process of damage evolution in a model austenite/martensite dual-phase microstructure following hydrogenation was investigated through multi-scale electron channelling contrast imaging and in situ optical microscopy.
We will investigate the electrothermomechanical response of individual metallic nanowires as a function of microstructural interfaces from the growth processes. This will be accomplished using in situ SEM 4-point probe-based electrical resistivity measurements and 2-point probe-based impedance measurements, as a function of mechanical strain and…
This project aims to investigate the influence of grain boundaries on mechanical behavior at ultra-high strain rates and low temperatures. For this micropillar compressions on copper bi-crystals containing different grain boundaries will be performed.
Hydrogen induced embrittlement of metals is one of the long standing unresolved problems in Materials Science. A hierarchical multiscale approach is used to investigate the underlying atomistic mechanisms.
Hydrogen embrittlement affects high-strength ferrite/martensite dual-phase (DP) steels. The associated micromechanisms which lead to failure have not been fully clarified yet. Here we present a quantitative micromechanical analysis of the microstructural damage phenomena in a model DP steel in the presence of hydrogen.
This project will aim at developing MEMS based nanoforce sensors with capacitive sensing capabilities. The nanoforce sensors will be further incorporated with in situ SEM and TEM small scale testing systems, for allowing simultaneous visualization of the deformation process during mechanical tests
The project aims to study corrosion, a detrimental process with an enormous impact on global economy, by combining denstiy-functional theory calculations with thermodynamic concepts.