Hassel, A. W.; Lohrengel, M. M.: Electrochemical Investigations in a Scanning Droplet. The Dielectrics Society 1995 Conference in conjunction with The Electrochemistry Group of the Royal Society of Chemistry, Impedance Spectroscopy at Electrodes and Interfaces, Canterbury, UK (1995)
Lohrengel, M. M.; Rüße, S.; Hassel, A. W.; Diesing, D.: Dielectric Relaxation in Anodic Valve Metal Oxide Films. The Dielectrics Society 1995 Conference in conjunction with The Electrochemistry Group of the Royal Society of Chemistry, Impedance Spectroscopy at Electrodes and Interfaces, Canterbury, UK (1995)
Hassel, A. W.; Lohrengel, M. M.: Current and Impedance Transients for the Investigation of Ultra Thin Anodic Valve Metal Oxide Films. 31. AGEF Seminar, Bonn, Germany (1994)
Lohrengel, M. M.; Hassel, A. W.: Investigation of Ultra Thin Anodic Valve Metal Oxide Films by Time Resolved Impedance Spectroscopy. 45th Meeting of the International Society of Electrochemistry, Porto, Portugal (1994)
Hassel, A. W.; Lohrengel, M. M.: Preparation and Properties of Ultra Thin Anodic Valve Metal Oxide Films. 7th International Symposium on Passivity, Clausthal-Zellerfeld, Germany (1994)
Hassel, A. W.; Lohrengel, M. M.: Proton Mobility in Valve Metal Oxides. 44th Meeting of the International Society of Electrochemistry, Berlin, Germany (1993)
Hassel, A. W.; Rohwerder, M.: SurMat09: Lab course on Applied Surface Spectroscopy and Microscopy. Lecture: 2-tägige Blockveranstaltung im Rahmen der Max-Planck School SurMat, Ruhr-Universität Bochum, Germany, 2007-11
Hassel, A. W.: Reactions at surfaces and interfaces I: Electron Transfer Reactions. Lecture: Lecture/Courseware, Fakultät für Maschinenbau, Ruhr-Universität-Bochum, Germany, 2007 - 2008
Hassel, A. W.; Rohwerder, M.: SurMat09: Lab course on Applied Surface Spectroscopy and Microscopy. Lecture: 2-tägige Blockveranstaltung im Rahmen der Max-Planck School SurMat, Ruhr-Universität Bochum, Germany, 2005-11
Hassel, A. W.: Einführung in die Nanotechnologie. Lecture: Einführung in die Nanotechnologie, Heinrich-Heine Universität Düsseldorf, Germany, April 01, 2005 - September 30, 2005
Hassel, A. W.: Modern Coating Technologies. Lecture: Vorlesung WS 2006/2007, International Max-Planck-Research-School for Surface and Interface Engineering in Advanced Materials, MPI für Eisenforschung GmbH, Düsseldorf, Germany
Hassel, A. W.: Electron and Ion Transfer Reactions at Surfaces and Interfaces. Lecture: Vorlesung WS 2005/2006, International Max-Planck-Research-School for Surface and Interface Engineering in Advanced Materials, MPIE, Düsseldorf, Germany
Hassel, A. W.: Introduction into physical chemistry of surfaces and interfaces. Lecture: WS2007/2008, Fakultät für Maschinenbau, Ruhr-Universität-Bochum, Germany
Chen, Y.: Gold Nanostructures born from the Fe–Au Eutectoid: Electrochemical and Physical Investigations. Dissertation, Ruhr-Universität-Bochum, Bochum, Germany (2009)
Mardare, A. I.: High throughput growth, modification and characterization of thin anodic oxides on valve metals. Dissertation, Ruhr-Universität Bochum, Fakultät für Physik und Astronomie, Bochum, Germany (2009)
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…
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…
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.
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.
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.
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.
Thermo-chemo-mechanical interactions due to thermally activated and/or mechanically induced processes govern the constitutive behaviour of metallic alloys during production and in service. Understanding these mechanisms and their influence on the material behaviour is of very high relevance for designing new alloys and corresponding…
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…