Rohwerder, M.; Stratmann, M.; de Boeck, A.; Ogle, K.; Rehnisch, O.; Reier, T.; Stellnberger, K.-H.; Steinbeck, C.; Wormuth, R.: Investigation of the delamination of polymer-coated zinc and steel surfaces with the scanning Kelvin probe in a climatic cycle test. GALVATECH 2001, Brussels, Belgium (2001)
Stratmann, M.; Vander Kloet, J.; Schmidt, W.; Hassel, A. W.: Investigations into the Role of Copper in AA2024-T3 Aluminium Alloys on Filiform Corrosion Advancement and the Role of Chromium in Corrosion Inhibition. 63. AGEF-Seminar, Düsseldorf, Germany (2001)
Rohwerder, M.; Stratmann, M.: The Scanning Kelvin Probe as a New Technique to Analyze Buried Interfaces. 196th meeting of the ECS, Honolulu, USA (1999)
Rohwerder, M.; Unger, M.; Lobnig, R. E.; Stratmann, M.: Role of ammonia sulfate particles in the corrosion of electronic devices. Eurocorr'99, Aachen, Germany (1999)
Rohwerder, M.; de Weldige, K.; Stratmann, M.: On the influence of the electrode potential on growth and stability of thiol monolayer films: Scanning tunneling microscopic and electrochemical investigations. 3rd Indo-German Symposium on modern methods in electrochemistry, Bangalore, India (1996)
Rohwerder, M.; de Weldige, K.; Stratmann, M.: Zum Einfluß des Elektrodenpotentials auf Wachstum und Zerstörung von Thiolfilmen. Bunsentagung, Jena, Germany (1996)
Rohwerder, M.; de Weldige, K.; Stratmann, M.: The influence of the electrode potential on the self-assembly of decanethiol on the Au(111) surface. 188th Meeting of the ECS, Chicago, IL, USA (1995)
Rohwerder, M.; de Weldige, K.; Viefhaus, H.; Stratmann, M.: Adsorption selbst-organisierter Mercaptan-Monolagen auf Gold. Workshop on Development and Industrial Application of Scanning Probe Microscopes SXM1, Münster, Germany (1994)
Pang, B.; Stratmann, M.; Vogel, D.; Erbe, A.; Rohwerder, M.: Characterization of electrochemical double layer formed on Au (111) electrode: a KPM, FTIR and APXPS investigation. 2nd Annual APXPS Workshop, Berkeley, CA, USA (2015)
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.
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.
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.
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.
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.