Jeong, J.; Jang, W.-S.; Kim, K. H.; Kostka, A.; Gu, G.; Kim, Young, Y.-M.; Oh, S. H.: Crystallographic Orientation Analysis of Nanocrystalline Tungsten Thin Film Using TEM Precession Electron Diffraction and SEM Transmission Kikuchi Diffraction. Microscopy and Microanalysis 27 (2), pp. 237 - 249 (2021)
Kiener, D.; Jeong, J.; Alfreider, M.; Konetschnik, R.; Oh, S. H.: Prospects of using small scale testing to examine different deformation mechanisms in nanoscale single crystals - A case study in Mg. Crystals 11 (1), 61 (2021)
Utt, D.; Lee, S.; Stukowski, A.; Oh, S. H.; Dehm, G.; Albe, C.: Jerky motion of dislocations in high-entropy alloys: The linkage between local Peierls stress fluctuations and dislocation mobility. Condensed Matter: Materials Science, pp. 1 - 13 (2020)
Oh, S. H.; Legros, M.; Kiener, D.; Dehm, G.: In situ observation of dislocation nucleation and escape in a submicrometre aluminium single crystal. Nature Materials 8 (2), pp. 95 - 100 (2009)
Oh, S. H.; Legros, M.; Kiener, D.; Gruber, P. A.; Dehm, G.: In situ TEM straining of single crystal Au films on polyimide: Change of deformation mechanisms at the nanoscale. Acta Materialia 55 (16), pp. 5558 - 5571 (2007)
Dehm, G.; Edongué, H.; Wagner, T. A.; Oh, S. H.; Arzt, E.: Obtaining different orientation relationships for Cu films grown on (0001) α-Al2O3 substrates by magnetron sputtering. Zeitschrift für Metallkunde 96 (3), pp. 249 - 254 (2005)
Oh, S. H.; Legros, M.; Kiener, D.; Gruber, P. A.; Dehm, G.: Size-Induced Transition from Perfect to Partial Dislocation Plasticity in Single Crystal Au Films on Polyimide. In: Proceeding Microscopy 33rd Conference, Deutsche Gesellschaft für Elektronenmikroskopie, pp. 278 - 279. Microscopy 33rd Conference, Deutsche Gesellschaft für Elektronenmikroskopie, Saarbrücken, Germany, September 02, 2007 - September 07, 2007. (2007)
Oh, S. H.; Kiener, D.; Legros, M.; Gruber, P. A.; Arzt, E.; Dehm, G.: In-situ TEM tensile testing of thin Au films: A transition in deformation mechanism. Meeting at Erich Schmid Institute of Materials Science, Austrian Academy of Sciences, Leoben, Austria., (2006)
Oh, S. H.; Scheu, C.; Dehm, G.; Wagner, T. A.; Rühle, M.; Lee, H. J.: Direct atomic scale observation of dynamic alumina-aluminum solid-liquid interfaces. In: The 8th Asia-Pacific Conference on Electron Microscopy (8APEM): In Conjunction with the 60th Annual Meeting of the Japanese Society of Microscopy, pp. 671 - 672. 8th Asia-Pacific Conference on Electron Microscopy (8APEM), Kanazawa, Japan, June 07, 2004 - June 11, 2004. Die Japanische Gesellschaft für Mikroskopie, Uchinada-mati (Isikawa-ken), Japan (2004)
Jeong, J.; Kim, J.; Kiener, D.; Oh, S. H.: In-situ TEM observation of twin-dominated deformation of Mg single crystals. KSM Annual Fall Conference 2019, Gyeongju, South Korea (2019)
Lee, S.; Duarte, M. J.; Soler, R.; Kirchlechner, C.; Liebscher, C.; Oh, S. H.; Dehm, G.: In-situ TEM Study of Dislocation Plasticity of a Single Crystal FeCoCrMnNi HEA. IAMNano 2018, The International Workshop on Advanced and In-situ Microscopies of Functional Nanomaterials and Devices, Hamburg, Germany (2018)
Lee, S.; Duarte, M. J.; Liebscher, C.; Oh, S. H.; Dehm, G.: Dislocation Plasticity in Single Crystal FeCrCoMnNi HEA by in-situ TEM Deformation. Schöntal Symposium - Dislocation based plasticity, Schöntal, Germany (2018)
Scientists of the Max-Planck-Institut für Eisenforschung pioneer new machine learning model for corrosion-resistant alloy design. Their results are now published in the journal Science Advances
The utilization of Kelvin Probe (KP) techniques for spatially resolved high sensitivity measurement of hydrogen has been a major break-through for our work on hydrogen in materials. A relatively straight forward approach was hydrogen mapping for supporting research on hydrogen embrittlement that was successfully applied on different materials, and…
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
Photovoltaic materials have seen rapid development in the past decades, propelling the global transition towards a sustainable and CO2-free economy. Storing the day-time energy for night-time usage has become a major challenge to integrate sizeable solar farms into the electrical grid. Developing technologies to convert solar energy directly into…
It is very challenging to simulate electron-transfer reactions under potential control within high-level electronic structure theory, e. g. to study electrochemical and electrocatalytic reaction mechanisms. We develop a novel method to sample the canonical NVTΦ or NpTΦ ensemble at constant electrode potential in ab initio molecular dynamics…
The field of micromechanics has seen a large progress in the past two decades, enabled by the development of instrumented nanoindentation. Consequently, diverse methodologies have been tested to extract fundamental properties of materials related to their plastic and elastic behaviour and fracture toughness. Established experimental protocols are…
Statistical significance in materials science is a challenge that has been trying to overcome by miniaturization. However, this process is still limited to 4-5 tests per parameter variance, i.e. Size, orientation, grain size, composition, etc. as the process of fabricating pillars and testing has to be done one by one. With this project, we aim to…
Crystal Plasticity (CP) modeling [1] is a powerful and well established computational materials science tool to investigate mechanical structure–property relations in crystalline materials. It has been successfully applied to study diverse micromechanical phenomena ranging from strain hardening in single crystals to texture evolution in…