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)
About 90% of all mechanical service failures are caused by fatigue. Avoiding fatigue failure requires addressing the wide knowledge gap regarding the micromechanical processes governing damage under cyclic loading, which may be fundamentally different from that under static loading. This is particularly true for deformation-induced martensitic…
In this project, we aim to realize an optimal balance among the strength, ductility and soft magnetic properties in soft-magnetic high-entropy alloys. To this end, we introduce a high-volume fraction of coherent and ordered nanoprecipitates into the high-entropy alloy matrix. The good combination of strength and ductility derives from massive solid…
In this project we conduct together with Dr. Sandlöbes at RWTH Aachen and the department of Prof. Neugebauer ab initio calculations for designing new Mg – Li alloys. Ab initio calculations can accurately predict basic structural, mechanical, and functional properties using only the atomic composition as a basis.
The wide tunability of the fundamental electronic bandgap by size control is a key attribute of semiconductor nanocrystals, enabling applications spanning from biomedical imaging to optoelectronic devices. At finite temperature, exciton-phonon interactions are shown to exhibit a strong impact on this fundamental property.
Oxides find broad applications as catalysts or in electronic components, however are generally brittle materials where dislocations are difficult to activate in the covalent rigid lattice. Here, the link between plasticity and fracture is critical for wide-scale application of functional oxide materials.
This project is a joint project of the De Magnete group and the Atom Probe Tomography group, and was initiated by MPIE’s participation in the CRC TR 270 HOMMAGE. We also benefit from additional collaborations with the “Machine-learning based data extraction from APT” project and the Defect Chemistry and Spectroscopy group.
In this project we study - together with the department of Prof. Neugebauer and Dr. Sandlöbes at RWTH Aachen - the underlying mechanisms that are responsible for the improved room-temperature ductility in Mg–Y alloys compared to pure Mg.