Jaya, B. N.; Kirchlechner, C.; Dehm, G.: Can micro-scale fracture tests provide reliable fracture toughness values? A case study in silicon. Journal of Materials Research 30 (5), pp. 686 - 698 (2015)
Heinz, W.; Robl, W.; Dehm, G.: Influence of initial microstructure on thermomechanical fatigue behavior of Cu films on substrates. Microelectronic Engineering 137, pp. 5 - 10 (2015)
Zhang, Z.; Dehm, G.: Study on the Atomic and Electronic Structure in CrN (VN, TiN) Films using Cs-Corrected TEM. Microscopy and Microanalysis 21 (3), pp. 2079 - 2080 (2015)
Rashkova, B.; Faller, M.; Pippan, R.; Dehm, G.: Growth mechanism of Al2Cu precipitates during in situ TEM heating of a HPT deformed Al–3wt.%Cu alloy. Journal of Alloys and Compounds 600, pp. 43 - 50 (2014)
Imrich, P. J.; Kirchlechner, C.; Motz, C.; Dehm, G.: Differences in deformation behavior of bicrystalline Cu micropillars containing a twin boundary or a large-angle grain boundary. Acta Materialia 73, pp. 240 - 250 (2014)
Harzer, T. P.; Daniel, R.; Mitterer, C.; Dehm, G.; Zhang, Z. L.: Transmission electron microscopy characterization of CrN films on MgO(001). Thin Solid Films 545, pp. 154 - 160 (2013)
Daum, B.; Dehm, G.; Clemens, H.; Rester, M.; Fischer, F. D.; Rammerstorfer, F. G.: Elastoplastic buckling as source of misinterpretation of micropillar tests. Acta Materialia 61 (13), pp. 4996 - 5007 (2013)
Taylor, A. A.; Cordill, M. J.; Bowles, L.; Schalko, J.; Dehm, G.: An elevated temperature study of a Ti adhesion layer on polyimide. Thin Solid Films 531, pp. 354 - 361 (2013)
Li, L. L.; An, X. H.; Imrich, P. J.; Zhang, P.; Zhang, Z. J.; Dehm, G.; Zhang, Z. F.: Microcompression and cyclic deformation behaviors of coaxial copper bicrystals with a single twin boundary. Scripta Materialia 69, pp. 199 - 202 (2013)
Zhang, Z.; Li, H.; Daniel, R.; Mitterer, C.; Dehm, G.: Insights into the atomic and electronic structure triggered by ordered nitrogen vacancies in CrN. Physical Review B 87 (1), pp. 014104-1 - 014104-9 (2013)
In this project, links are being established between local chemical variation and the mechanical response of laser-processed metallic alloys and advanced materials.
In this project, we employ a metastability-engineering strategy to design bulk high-entropy alloys (HEAs) with multiple compositionally equivalent high-entropy phases.
Solitonic excitations with topological properties in charge density waves may be used as information carriers in novel types of information processing.
About 90% of all mechanical service failures are caused by fatigue. Avoiding fatigue failure requires addressing the wide knowledge gap regarding the micromechanical processes governing damage under cyclic loading, which may be fundamentally different from that under static loading. This is particularly true for deformation-induced martensitic…
In this project we conduct together with Dr. Sandlöbes at RWTH Aachen and the department of Prof. Neugebauer ab initio calculations for designing new Mg – Li alloys. Ab initio calculations can accurately predict basic structural, mechanical, and functional properties using only the atomic composition as a basis.
Low dimensional electronic systems, featuring charge density waves and collective excitations, are highly interesting from a fundamental point of view. These systems support novel types of interfaces, such as phase boundaries between metals and charge density waves.
In this project we study - together with the department of Prof. Neugebauer and Dr. Sandlöbes at RWTH Aachen - the underlying mechanisms that are responsible for the improved room-temperature ductility in Mg–Y alloys compared to pure Mg.
The wide tunability of the fundamental electronic bandgap by size control is a key attribute of semiconductor nanocrystals, enabling applications spanning from biomedical imaging to optoelectronic devices. At finite temperature, exciton-phonon interactions are shown to exhibit a strong impact on this fundamental property.