Yoo, S.-H.: Overcoming failing Size Convergence for Surface Calculations of Materials Exhibiting Spontaneous Polarization. International Conference Materials Science and Engineering: Materials Oceania 2021, virtual, Brisbane City, Australia (2021)
Yoo, S.-H.: Electronic passivation schemes for surfaces with spontaneous polarization and for low symmetry semiconductor surfaces in DFT slab calculations. Materials Design Group Seminar, Department of Materials, Imperial College London, virtual, London, UK (2021)
Neugebauer, J.; Yoo, S.-H.; Lymperakis, L.: Ab initio insights into fundamental intrinsic growth and materials limitations in group-III-nitrides. MRS 2021 Fall Meeting, Virtual Conference, Boston, MA, USA (2021)
Yoo, S.-H.: Investigations of materials surfaces based on density functional theory calculations. Department of Chemistry seminar, virtual, Chuncheon, Republic of Korea (2020)
Todorova, M.; Yoo, S.-H.; Surendralal, S.; Neugebauer, J.: Insights into the stability and reactivity of solid/liquid interfaces from ab initio calculations. 71st Annual Meeting of the International Society of Electrochemistry "Electrochemistry towards Excellence", virtual, Belgrade, Serbia (2020)
Todorova, M.; Yoo, S.-H.; Surendralal, S.; Neugebauer, J.: Predicting atomic structure and chemical reactions at solid-liquid interfaces by first principles. Operando surface science – Atomistic insights into electrified solid/liquid interfaces (708. WE-Heraeus-Seminar), Physikzentrum, Bad Honnef, Germany (2019)
Todorova, M.; Yoo, S.-H.; Surendralal, S.; Neugebauer, J.: A fully ab initio approach to modelling electrochemical solid/liquid interfaces. Chemiekolloquium der Johannes Kepler Universität Linz, Linz, Austria (2019)
Todorova, M.; Yoo, S.-H.; Surendralal, S.; Neugebauer, J.: Modelling electrochemical solid/liquid interfaces by first principles calculations. 19th International Workshop on Computational Physics and Material Science: Total Energy and Force Methods, ICTP, Trieste, Italy (2019)
Yoo, S.-H.: Development of a computational framework to determine the chemical and thermodynamic stability of electrode materials in an electrochemical environment. Dissertation, Ruhr-Universität Bochum (2020)
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…
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
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.
Thermo-chemo-mechanical interactions due to thermally activated and/or mechanically induced processes govern the constitutive behaviour of metallic alloys during production and in service. Understanding these mechanisms and their influence on the material behaviour is of very high relevance for designing new alloys and corresponding…
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.
Understanding hydrogen-assisted embrittlement of advanced structural materials is essential for enabling future hydrogen-based energy industries. A crucially important phenomenon in this context is the delayed fracture in high-strength structural materials. Factors affecting the hydrogen embrittlement are the hydrogen content,...
Understanding hydrogen-assisted embrittlement of advanced high-strength steels is decisive for their application in automotive industry. Ab initio simulations have been employed in studying the hydrogen trapping of Cr/Mn containing iron carbides and the implication for hydrogen embrittlement.