Hassel, A. W.; Diesing, D.: Breakdown of ultrathin anodic valve metal oxide films in metal-insulator-metal-contacts compared with metal-insulator-electrolyte contacts. Thin Solid Films 414, pp. 296 - 303 (2002)
Hassel, A. W.; Diesing, D.: Trapping of transient processes in aluminium oxide thin films in a voltage pulse experiment. Electrochemistry Communications 4, pp. 1 - 4 (2002)
Hassel, A. W.; van der Kloet, J.; Schmidt, W.; Stratmann, M.: In-situ SKP Investigation and ToF-SIMS Analysis of Filiform Corrosion on Aluminium Alloy 2024-T3. Proceed. Japan Soc. CoRR. Engineer. Mater. Environments 48, pp. 61 - 69 (2001)
Mozalev, A.; Poznyak, A.; Mozaleva, I.; Hassel, A. W.: The voltage-time behaviour for porous anodizing of aluminium in a fluoride-containing oxalic acid electrolyte. Electrochem. Commun. 3, pp. 299 - 305 (2001)
Seo, M.; Aihara, M.; Hassel, A. W.: Cathodic Decomposition and Anodic Dissolution and Changes in Surface Morphology of n-type InP in HCl. J. Electrochem. Soc. 148, pp. B400 - B404 (2001)
Seo, M.; Aihara, M.; Hassel, A. W.: Cathodic Decomposition and Changes in Surface Morphology of InP in HCl. Electrochem. Soc. Proc. PV 00-25, pp. 576 - 585 (2000)
Diesing, D.; Hassel, A. W.; Lohrengel, M. M.: Aluminium Oxide Tunnel Junctions: Influence of Preparation Technique, Sample Geometry and Oxide Thickness. Thin Solid Films 342, pp. 282 - 290 (1999)
Hassel, A. W.; Seo, M.: Localised Investigation of Coarse Grain Gold with the Scanning Droplet Cell and by the Laue Method. Electrochim. Acta 44, pp. 3769 - 3777 (1999)
Hassel, A. W.; Lohrengel, M. M.: The Scanning Droplet Cell and its Application to Structured Nanometer Oxide Films on Aluminium. Electrochimica Acta 42, pp. 3327 - 3333 (1997)
Hassel, A. W.; Lohrengel, M. M.; Schultze, J. W.: Ultradünne Aluminiumoxidschichten: Untersuchung elektronischer und ionischer Transportprozesse. Metalloberfläche 50, pp. 19 - 22 (1996)
Hassel, A. W.; Lohrengel, M. M.; Schultze, J. W.: Ultradünne Aluminiumoxidschichten: Untersuchung elektronischer und ionischer Transportprozesse. Metalloberfläche 50, pp. 19 - 22 (1996)
Hassel, A. W.; Lohrengel, M. M.: Preparation and Properties of Ultra Thin Anodic Valve Metal Oxide Films. Materials Science Forum 185-188, pp. 581 - 590 (1995)
Hassel, A. W.; Lohrengel, M. M.; Rüße, S.; Schultze, J. W.: On the Mechanism of Ion Transport in Thin (1-100 nm) Oxide Films on Aluminum and Tantalum. Bulletin of the Chemists and Technologists of Macedonia 13, pp. 49 - 54 (1994)
Hassel, A. W.; Bonk, S.; Wicinski, M.; Stratmann, M.; Ogle, K.; Philips-Falcey, N.; Ostwald, C.; Janssen, S.; Stellnberger, K.-H.; Konrath, P.: Passive/active transistions in cyclic corrosion tests. Office for Official Publications of the European Communities, Luxembourg, Luxembourg (2007)
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…
Smaller is stronger” is well known in micromechanics, but the properties far from the quasi-static regime and the nominal temperatures remain unexplored. This research will bridge this gap on how materials behave under the extreme conditions of strain rate and temperature, to enhance fundamental understanding of their deformation mechanisms. The…
Biological materials in nature have a lot to teach us when in comes to creating tough bio-inspired designs. This project aims to explore the unknown impact mitigation mechanisms of the muskox head (ovibus moschatus) at several length scales and use this gained knowledge to develop a novel mesoscale (10 µm to 1000 µm) metamaterial that can mimic the…
Microbiologically influenced corrosion (MIC) of iron by marine sulfate reducing bacteria (SRB) is studied electrochemically and surfaces of corroded samples have been investigated in a long-term project.
Hydrogen embrittlement (HE) of steel is a great challenge in engineering applications. However, the HE mechanisms are not fully understood. Conventional studies of HE are mostly based on post mortem observations of the microstructure evolution and those results can be misleading due to intermediate H diffusion. Therefore, experiments with a…
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.
In this project we investigate the hydrogen distribution and desorption behavior in an electrochemically hydrogen-charged binary Ni-Nb model alloy. The aim is to study the role of the delta phase in hydrogen embrittlement of the Ni-base alloy 718.