Grabowski, B.; Wippermann, S. M.; Glensk, A.; Hickel, T.; Neugebauer, J.: Random phase approximation up to the melting point: Impact of anharmonicity and nonlocal many-body effects on the thermodynamics of Au. DPG Spring Meeting 2015, Berlin, Germany (2015)
Nugraha, T. A.; Wippermann, S. M.: Understanding 3C-SiC/SiO2 interfaces in SiC-nanofiber based solar cells from ab initio theory. APS March Meeting 2015, San Antonio, TX, USA (2015)
Scalise, E.; Wippermann, S. M.; Galli, G.: Nanointerfaces in InAs-Sn2S6 nanocrystal-ligand networks: atomistic and electronic structure from first principles. APS March Meeting 2015, San Antonio, TX, USA (2015)
Scalise, E.; Wippermann, S. M.; Galli, G.: Nanointerfaces in InAs-Sn2S6 nanocrystal-ligand networks: atomistic and electronic structure from first principles. 79th Annual Meeting of the DPG and DPG Spring Meeting, Berlin, Germany (2015)
Wippermann, S. M.; Schmidt, W. G.; Oh, D. M.; Yeom, H. W.: Impurity-mediated early condensation of an atomic layer electronic crystal: oxygen-adsorbed In/Si(111)-(4×1)/(8×2). DPG Spring Meeting 2015, Berlin, Germany (2015)
Yang, L.; Tecklenburg, S.; Fang, N.; Erbe, A.; Wippermann, S. M.; Gygi, F.; Galli, G.: A joint first principles and ATR-IR study of the vibrational properties of interfacial water at Si(100):H-H2O solid-liquid interfaces. APS March Meeting 2015 , San Antonio, TX, USA (2015)
Wippermann, S. M.; Schmidt, W. G.: In/Si(111)-(4×1)/(8×2): a fascinating model system for one-dimensional conductors. DPG March Meeting 2014, Berlin, Germany (2014)
Wippermann, S. M.; Schmidt, W. G.: In/Si(111)-(4x1)/(8x2): A fascinating model system for one-dimensional conductors. DPG Spring Meeting, Dresden, Germany (2014)
Scalise, E.; Wippermann, S. M.; Galli, G.: Nanointerfaces in semiconducting nanocomposites: atomistic and electronic structure from first principles. PSI-K 2015 Conference , San Sebastian, Spain (2015)
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…
Microbiologically influenced corrosion (MIC) of iron by marine sulfate reducing bacteria (SRB) is studied electrochemically and surfaces of corroded samples have been investigated in a long-term project.
In this project we investigate the hydrogen distribution and desorption behavior in an electrochemically hydrogen-charged binary Ni-Nb model alloy. The aim is to study the role of the delta phase in hydrogen embrittlement of the Ni-base alloy 718.
Smaller is stronger” is well known in micromechanics, but the properties far from the quasi-static regime and the nominal temperatures remain unexplored. This research will bridge this gap on how materials behave under the extreme conditions of strain rate and temperature, to enhance fundamental understanding of their deformation mechanisms. The…
Biological materials in nature have a lot to teach us when in comes to creating tough bio-inspired designs. This project aims to explore the unknown impact mitigation mechanisms of the muskox head (ovibus moschatus) at several length scales and use this gained knowledge to develop a novel mesoscale (10 µm to 1000 µm) metamaterial that can mimic the…
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 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.