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)
Hieke, S. W.; Dehm, G.; Scheu, C.: Investigation of solid state dewetting phenomena of epitaxial Al thin films on sapphire using electron microscopy. In: European Microscopy Congress 2016: Proceedings, pp. 203 - 204. The 16th European Microscopy Congress (EMC 2016), Lyon, France, August 28, 2016 - September 02, 2016. Wiley-VCH Verlag GmbH & Co KGaA (2016)
Heinz, W.; Dehm, G.: Grain resolved orientation changes and texture evolution in a thermally strained Al film on Si substrate. The 38th International Conference on Metallurgical Coatings and Thin Films (ICMCTF 2011), San Diego, CA, USA, May 02, 2011 - May 06, 2011. Surface and Coatings Technology, Part of special issue: Proceedings of the 38th International Conference on Metallurgical Coatings and Thin Films (ICMCTF), ICMCTF 2011 206 (7), pp. 1511 - 2034 (2011)
Motz, C.; Kiener, D.; Kirchlechner, C.; Grosinger, W.; Pippan, R.; Dehm, G.: Advances in in-situ testing in scanning electron microscopes: probing mechanical properties at the nano/micro-scale. In: 10th Multinational Congress on Microscopy (MCM 2011), pp. 57 - 58. 10th Multinational Congress on Microscopy (MCM 2011). (2011)
Cha, L.; Clemens, H. J.; Dehm, G.; Zhang, Z.: In-situ TEM heating study of the γ lamellae formation inside the α2 matrix of a Ti-45Al-7.5Nb alloy. 2010 International Conference on Advances in Materials and Manufacturing Processes, ICAMMP 2010;Code 83174, Shenzhen, China, November 06, 2010 - November 08, 2020. Advanced Materials Research 146-147, pp. 1365 - 1368 (2011)
Clemens, H. J.; Schmoelzer, T.; Schloffer, M.; Schwaighofer, E.; Mayer, S.; Dehm, G.: Physical metallurgy and properties of β-solidifying TiAl based alloys. In: Materials Research Society symposium proceedings, Vol. 1295, pp. 95 - 100. Materials Research Society Symposium N – Intermetallic-Based Alloys for Structural and Functional Applications , San Francisco, CA, USA, April 25, 2011 - April 29, 2011. Materials Research Society: MRS, Leoben, Austria (2011)
Dehm, G.; Kiener, D.: Obtaining a quantitative micro- and nano-mechanical understanding of metals using in situ electron microscopy. In: MCM 2011, pp. 599 - 600. 10th Multinational Congress on Microscopy (MCM 2011), Urbino, Italy, September 04, 2011 - September 09, 2011. Urbino, Italy (2011)
Dehm, G.; Raj, R.; Rühle, M.: Measurement of the Interfacial Shear Strength of Thin Copper Films on Sapphire by Microindentation Experiments. In: Materials Research Symposium Proceedings 1996 (Symposium I – Polycrystalline Thin Films: Structure, Texture, Properties and Applications II), Vol. 403, pp. 151 - 156. 1996 MRS Fall Meeting & Exhibit, Boston, MA, USA, December 02, 1996 - December 06, 1996. Materials Research Society, Boston, MA, USA (2011)
Huang, R.; Robl, W.; Dehm, G.; Ceric, H.; Detzel, T.: Disparate tendency of stress evolution of thin and thick electroplated Cu films at room temperature. In: Proceedings of the International Symposium on the Physical and Failure Analysis of Integrated Circuits, 5532222, pp. 1 - 6. International Symposium on the Physical and Failure Analysis of Integrated Circuits IPFA 2010, Singapore, Singapore, July 05, 2010 - July 09, 2010. IEEE (2010)
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…
Nickel-based alloys are a particularly interesting class of materials due to their specific properties such as high-temperature strength, low-temperature ductility and toughness, oxidation resistance, hot-corrosion resistance, and weldability, becoming potential candidates for high-performance components that require corrosion resistance and good…
Hydrogen embrittlement of austenitic steels is of high interest because of the potential use of these materials in hydrogen-energy related infrastructures. In order to elucidate the associated hydrogen embrittlement mechanisms, the mapping of heterogeneities in strain, damage (crack/void), and hydrogen and their relation to the underlying microstructures is a key assignment in this field.
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.
Within this project, we will investigate the micromechanical properties of STO materials with low and higher content of dislocations at a wide range of strain rates (0.001/s-1000/s). Oxide ceramics have increasing importance as superconductors and their dislocation-based electrical functionalities that will affect these electrical properties. Hence…
We apply our novel potentiostat approach to study the chemical reactions that take place during initial corrosion at the water-Mg interface under anodic polarization. Based on the gained insight, we derive an atomistic model that explains the origin of the anodic hydrogen evolution.
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…
ZnO is a wide band gap semiconductor which is of interest to such diverse areas of application as passivation layers on steel surfaces, catalysis, corrosion, adhesion, gas sensing, and micro- or optoelectronics. Understanding the surface structure and stoichiometry is of high practical interest and essential for any of the mentioned applications…