Hassel, A. W.; Lohrengel, M. M.: Ionic and Electronic Transport Through Insulating nm-Films at High Field Strengths. 3rd Euroconference on Solid State Ionics, Teulada, Sardinia, Italy (1996)
Hassel, A. W.; Lohrengel, M. M.: Stationäre und instationäre Impedanzspektroskopie zur Untersuchung der Korrosion dünner Aluminiumoxidschichten. 35. AGEF-Seminar "Korrosion und Korrosionsschutz", Iserlohn, Germany (1995)
Hassel, A. W.; Lohrengel, M. M.: The Physical Meaning of the Components of an Equivalent Circuit of Thin Valve Metal Oxide Films. 46th Meeting of the International Society of Electrochemistry, Xiamen, China (1995)
Thekkekara, L. V.; Erbe, A.; Schmidt, D. A.; Havenith-Newen, M.; Hassel, A. W.: Nanoantennas from high melting point transition metal nanowires. Spring meeting of the German Physical Society, Regensburg, Germany (2010)
Thekkekara, L. V.; Erbe, A.; Schmidt, D.; Havenith, M.; Hassel, A. W.: Mid-Infrared spectroscopic studies on single transition metal nanowire. Nanotech Europe, Berlin, Germany (2009)
Fenster, J. C.; Smith, A. J.; Hassel, A. W.: Single Oxidized Tungsten Nanowires as Ion Selective Probes. 7th International Symposium on Electrochemical Micro- and Nanosystems, Ein-Gedi, Israel (2008)
Mardare, A. I.; Wieck, A. D.; Hassel, A. W.: High Througput Synthesis and Characterization of Ti Based Combinatorial Alloys. 7th International Symposium on Electrochemical Micro- and Nanosystems, Ein-Gedi, Israel (2008)
Milenkovic, S.; Frankel, D.; Smith, A. J.; Hassel, A. W.: Selective Phase Dissolution of NiAl-Mo Directionally Solidified Eutectic Alloys. 7th International Symposium on Electrochemical Micro- and Nanosystems, Ein-Gedi, Israel (2008)
Mardare, A. I.; Ludwig, A.; Savan, A.; Wieck, A. D.; Hassel, A. W.: Combinatorial microelectrochemistry with a scanning droplet cell on binary and ternary Ti, Ta and Hf alloys. International Smposium on Anodizing Science and Technology 2008, Rusutsu, Japan (2008)
Mardare, A. I.; Wieck, A.; Hassel, A. W.: Combinatorial electrochemistry on valve metal alloys. 2nd International IMPRS-SurMat Workshop on Surface and Interface Engineering in Advanced Materials, Bochum, Deutschland (2008)
Venzlaff, H.; Enning, D. R.; Widdel, F.; Stratmann, M.; Hassel, A. W.: Microbial corrosion induced by a highly aggressive SRB strain. 2nd International IMPRS-SurMat Workshop on Surface and Interface Engineering in Advanced Materials, Bochum, Germany (2008)
Woldemedhin, M. T.; Raabe, D.; Hassel, A. W.: Evaluation of Surface reactivity of β-Ti. 2nd International IMPRS-SurMat Workshop on Surface and Interface Engineering in Advanced Materials, Bochum, Deutschland (2008)
Chen, Y.; Hassel, A. W.: Electrochemical Release of High Aspect Ratio Gold Nanobelts from an Fe-Au eutectoid. Bunsentagung 2008, Saarbrücken, Deutschland (2008)
Fenster, J. C.; Smith, A. J.; Hassel, A. W.: Tungsten nanowires for the measurement of the pH value in confined zones. Bunsentagung 2008, Saarbrücken, Germany (2008)
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…
Oxidation and corrosion of noble metals is a fundamental problem of crucial importance in the advancement of the long-term renewable energy concept strategy. In our group we use state-of-the-art electrochemical scanning flow cell (SFC) coupled with inductively coupled plasma mass spectrometer (ICP-MS) setup to address the problem.
For understanding the underlying hydrogen embrittlement mechanism in transformation-induced plasticity steels, the process of damage evolution in a model austenite/martensite dual-phase microstructure following hydrogenation was investigated through multi-scale electron channelling contrast imaging and in situ optical microscopy.
We will investigate the electrothermomechanical response of individual metallic nanowires as a function of microstructural interfaces from the growth processes. This will be accomplished using in situ SEM 4-point probe-based electrical resistivity measurements and 2-point probe-based impedance measurements, as a function of mechanical strain and…
This project aims to investigate the influence of grain boundaries on mechanical behavior at ultra-high strain rates and low temperatures. For this micropillar compressions on copper bi-crystals containing different grain boundaries will be performed.
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.
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
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.