Möbus, G.; Schumann, E.; Dehm, G.; Rühle, M.: Measurement of Coherency States of Metal-Ceramic Interfaces by HRTEM Image Processing. Physica Status Solidi A 150 (1), pp. 77 - 87 (1995)
Dehm, G.; Rühle, M.; Ding, G.; Raj, R.: Growth and Structure of Copper Thin Films Deposited on (0001) Sapphire by Molecular Beam Epitaxy. Philosophical Magazine B-Physics of Condensed Matter Statistical Mechanics Electronic Optical and Magnetic Properties 71 (6), pp. 1111 - 1124 (1995)
Kirchlechner, C.; Kečkéš, J.; Micha, J.-S.; Dehm, G.: In Situ μLaue: Instrumental Setup for the Deformation of Micron Sized Samples. In: Neutrons and Synchrotron Radiation in Engineering Materials Science: From Fundamentals to Applications: Second Edition, pp. 425 - 438 (Eds. Staron, P.; Schreyer, A.; Clemens, H.; Mayer, S.). wiley, Hoboken, NJ, USA (2017)
Dehm, G.; Legros, M.; Kiener, D.: In-situ TEM Straining Experiments: Recent Progress in Stages and Small-Scale Mechanics. In: In-situ Electron Microscopy: SEM and TEM Applications in Physics, Chemistry and Materials Science, pp. 227 - 254 (Ed. Dehm, G.). Wiley VCH Verlag, Weinheim, Germany (2012)
Dehm, G.: Das Erich-Schmid-Institut für Materialwissenschaft (ESI) der Österreichischen Akademie der Wissenschaften. In: Handbuch der Nanoanalytik Steiermark, NanoNet Styria, 1 Ed., pp. 1 - 311 (Ed. Rom , W.). W. Rom, Graz, Austria (2005)
Dehm, G.; Müllner, P.: TEM-Observation of Dislocations in Polycrystalline Metal Films. In: The Encyclopedia of Materials: Science and Technology, Vol. 1, pp. 2329 - 2331 (Eds. Buschow, .H.J.; Cahn, R.; Flemings, M.; Ilschner, .; Kramer, E. et al.) (2001)
Microstructure of Ni2B Laser-Induced Surface-Alloyed α-Fe (Materials Resaerch Symposium Proceedings, Phase Transformations and Systems Driven far from Equilibrium, 481). MRS Fall Meeting´97, Boston, MA, USA. (2001)
Bieler, S.; Kang, S. G.; Heußen, D.; Ramachandramoorthy, R.; Dehm, G.; Weinberg, K.: Investigation of copper lattice structures using a Split Hopkinson Pressure Bar. Proceedings of Applied Mathematics and Mechanics, Special Issue: 92nd Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM) 21 (1), e202100155, (2021)
Rehman, U.; Tian, C.; Stein, F.; Best, J. P.; Dehm, G.: Fracture Toughness of the Intermetallic C15 Al2Ca Laves Phase Determined using a Micropillar Splitting Technique. In: Intermetallics 2021, pp. 155 - 156. Intermetallics 2021, Kloster Banz, Bad Staffelstein, Germany, October 04, 2021 - October 08, 2021. (2021)
Luo, W.; Kirchlechner, C.; Dehm, G.; Stein, F.: Micromechanics of Co–Nb Laves Phases: Strength, Fracture Toughness, and Hadrness as Function of Composition and Crystal Structure. In: Joint EPRI – 123HIMAT International Conference on Advances in High-Temperature Materials, 2019, pp. 11 - 21 (Eds. Shingledecker, J.; Takeyama, M.). EPRI's 9th International Conf on Advances in Materials Technology for Fossil Power Plants and the 2nd International 123HiMAT Conf on High-Temperature Materials, Nagasaki, Japan, October 21, 2019 - October 24, 2019. (2019)
Luo, W.; Kirchlechner, C.; Dehm, G.; Stein, F.: Deformation of Micropillars of Cubic and Hexagonal NbCo2 Laves Phases under Uniaxial Compression at Room Temperature. In: Proc. Intermetallics 2017, pp. 199 - 200 (Eds. Heilmaier, M.; Krüger, M.; Mayer, S.; Palm, M.; Stein, F.). Intermetallics 2017, Educational Center Kloster Banz, Bad Staffelstein, Germany, October 02, 2017 - October 06, 2017. Conventus Congressmanagement & Marketing GmbH, Jena, Germany (2017)
Hieke, S. W.; Willinger, M. G.; Wang, Z.-J.; Richter, G.; Dehm, G.; Scheu, C.: In situ electron microscopy – insights in solid state dewetting of epitaxial Al thin films on sapphire. In: Microscopy Conference 2017 (MC 2017) - Proceedings (Ed. Laue, M.). Microscopy Conference 2017 (MC 2017), Lausanne, Switzerland, August 21, 2017 - August 25, 2017. Universität Regensburg, Regensburg (2017)
Oxides find broad applications as catalysts or in electronic components, however are generally brittle materials where dislocations are difficult to activate in the covalent rigid lattice. Here, the link between plasticity and fracture is critical for wide-scale application of functional oxide materials.
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.
Efficient harvesting of sunlight and (photo-)electrochemical conversion into solar fuels is an emerging energy technology with enormous promise. Such emerging technologies depend critically on materials systems, in which the integration of dissimilar components and the internal interfaces that arise between them determine the functionality.
Enabling a ‘hydrogen economy’ requires developing fuel cells satisfying economic constraints, reasonable operating costs and long-term stability. The fuel cell is an electrochemical device that converts chemical energy into electricity by recombining water from H2 and O2, allowing to generate environmentally-friendly power for e.g. cars or houses…
The project Hydrogen Embrittlement Protection Coating (HEPCO) addresses the critical aspects of hydrogen permeation and embrittlement by developing novel strategies for coating and characterizing hydrogen permeation barrier layers for valves and pumps used for hydrogen storage and transport applications.
A wide range of steels is nowadays used in Additive Manufacturing (AM). The different matrix microstructure components and phases such as austenite, ferrite, and martensite as well as the various precipitation phases such as intermetallic precipitates and carbides generally equip steels with a huge variability in microstructure and properties.
In this project, we work on a generic solution to design advanced high-entropy alloys (HEAs) with enhanced magnetic properties. By overturning the concept of stabilizing solid solutions in HEAs, we propose to render the massive solid solutions metastable and trigger spinodal decomposition. The motivation for starting from the HEA for this approach…