Hassel, A. W.: Detection of Elementary Events in the Depassivation of Nitinol under Mechanical Influence. Go Okamoto Centennial Meeting, Sapporo, Japan (2005)
Hassel, A. W.: Self organised nanostructures from directionally solidified eutectics. Seminar at the National Institute for Materials Science, Tsukuba, Japan (2005)
Bello Rodriguez, B.; Milenkovic, S.; Hassel, A. W.; Schneider, A.: Formation of self-organised nanostructures from directionally solidified eutectic alloys. 12th International Symposium on Metastable and nano Materials (ISMANAM), Paris, France (2005)
Asteman, H.; Lill, K.; Hassel, A. W.; Spiegel, M.: Local Measurements of the Semi conducting Properties of alpha-Fe2O3 and Cr2O3 Films by Impedance Measurement using the Scanning Droplet Cell Technique. 9th International Symposium on the Passivity of Metals and Semiconductors, Paris, France (2005)
Bello Rodriguez, B.; Hassel, A. W.; Schneider, A.: Deposition of Noble Metals on Nanopores for the Formation of Nanodisc Electrodes. 207th Meeting of The Electrochemical Society, Québec City, Canada (2005)
Hassel, A. W.; Milenkovic, S.; Schneider, A.: Preparation of One-Dimensionally Structured Electrode Materials by Directional Solidification. 207th Meeting of The Electrochemical Society, Québec City, Canada (2005)
Lill, K. A.; Hassel, A. W.; Stratmann, M.: On the Electrochemical Behaviour of Single Grains of FeCrAl Ferritic Steels. 207th Meeting of The Electrochemical Society, Québec City, Canada (2005)
Smith, A.; Stratmann, M.; Hassel, A. W.: Transient Measurements of Single Particle Impacts on Disk Shaped Microelectrodes for the Investigation of Tribocorrosion. 207th Meeting of The Electrochemical Society, Québec City, Canada (2005)
Hassel, A. W.; Diesing, D.: Modifikation der Fehlstellenkonzentration in Metall-Isolator-Metall-Kontakten und deren Einfluß auf das elektronische Tunneln. Bunsentagung 2005, Frankfurt, Germany (2005)
Mingers, A. M.; Hassel, A. W.; Stratmann, M.; van der Heyden, M.: A Combined Analytical and Electrochemical Method to Evaluate the Stability of Thermal Spray Coatings. 81. AGEF Seminar „Tribocorrosion“, Düsseldorf, Germany (2005)
Smith, A.; Hassel, A. W.: Detection of repassivation transients from single particle impingement on disc shaped microelectrodes. 81. AGEF Seminar „Tribocorrosion“, Düsseldorf, Germany (2005)
Hassel, A. W.: Elektrochemie mit und an Nanoelektrodenarrays. 79. AGEF-Symposium, 25 Jahre Elektrochemie in Düsseldorf, Heinrich-Heine-Universität, Düsseldorf, Germany (2004)
Lill, K. A.; Stratmann, M.; Frommeyer, G.; Hassel, A. W.: On the corrosion resistance of a new class of FeCrAl light weight ferritic steels. 55th Meeting of the International Society of Electrochemistry, Thessaloniki, Greece (2004)
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 plan to investigate the rate-dependent tensile properties of 2D materials such as metal thin films and PbMoO4 (PMO) films by using a combination of a novel plan-view FIB based sample lift out method and a MEMS based in situ tensile testing platform inside a TEM.
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.
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…
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