von Pezold, J.; Lymperakis, L.; Neugebauer, J.: Atomistic study of the Hydrogen enhanced local plasticity (HELP) mechanism. ADIS 2010, Mechanical Properties, Ringberg, Germany (2010)
Himmerlich, M.; Lorenz, P.; Lymperakis, L.; Gutt, R.; Neugebauer, J.; Krischok, S.: GaN(0001) Surface States: A Comparison Between Photoelectron Spectroscopy and Density Functional Theory. International Workshop on Nitride Semiconductors, Tampa, Florida, USA (2010)
Lymperakis, L.; Neugebauer, J.: Ab initio Based Growth Simulations of III-Nitride Nanowires. International Workshop on Nitride Semiconductors, Tampa, Florida, USA (2010)
von Pezold, J.; Lymperakis, L.; Neugebauer, J.: Embrittlement in metals: An atomistic study of the Hydrogen enhanced local plasticity (HELP) mechanism. 139th Annual Meeting of the Minerals, Metals and Materials Society (TMS), Seattle, WA, USA (2010)
Lymperakis, L.; Neugebauer, J.: Ab-initio based growth simulations of III-Nitride nanowires. Computational Materials Science on Complex Energy Landscapes Workshop, Imst, Austria (2010)
Nikolov, S.; Petrov, M.; Lymperakis, L.; Friák, M.; Sachs, C.; Fabritius, H.; Neugebauer, J.; Raabe, D.: Extremal stiffness of crustacean cuticle through hierarchical optimization: Theory, modeling, and experiment. 3rd International Conference on Mechanics of Biomaterials & Tissues, multiscale modeling of tissue mechanical properties, Clearwater Beach, FL, USA (2009)
von Pezold, J.; Lymperakis, L.; Neugebauer, J.: Understanding embrittlement in metals: A multiscale study of the Hydrogen-enhanced local plasticity mechanism. Materials Research Society (MRS) Fall meeting, Boston, MA, USA (2009)
Lymperakis, L.; Neugebauer, J.: Adatom Kinetics, Thermodynamics, and Si Incorporation on Non-Polar III-Nitride Surfaces: Implications on Nanowire Growth. 8th nternational Conference on Nitride Semiconductors, Jeju Island, South Korea (2009)
International researcher team presents a novel microstructure design strategy for lean medium-manganese steels with optimized properties in the journal Science
The aim of the current study is to investigate electrochemical corrosion mechanisms by examining the metal-liquid nanointerfaces. To achieve this, corrosive fluids will be strategically trapped within metal structures using novel additive micro fabrication techniques. Subsequently, the nanointerfaces will be analyzed using cryo-atom probe…
TiAl-based alloys currently mature into application. Sufficient strength at high temperatures and ductility at ambient temperatures are crucial issues for these novel light-weight materials. By generation of two-phase lamellar TiAl + Ti3Al microstructures, these issues can be successfully solved. Because oxidation resistance at high temperatures is…
We plan to investigate the rate-dependent tensile properties of 2D materials such as metal thin films and PbMoO4 (PMO) films by using a combination of a novel plan-view FIB based sample lift out method and a MEMS based in situ tensile testing platform inside a TEM.
The main aspect of this project is to understand how hydrogen interacts with dislocations/ stacking faults at the stress concentrated crack tip. A three-point bending test has been employed for this work.