Grundmeier, G.; Fink, N.; Giza, M.; Popova, V.; Vlasak, R.; Wapner, K.: Application of combined spectroscopic, electrochemical and microscopic techniques for the understanding of adhesion and de-adhesion at polymer/metal interfaces. 24. Spektrometertagung, Dortmund, Germany (2005)
Grundmeier, G.; Wapner, K.: Anwendung einer neuen höhenregulierbaren Rasterkelvinsonde zur Untersuchung der Stabilität von Klebstoff-Metall-Grenzflächen in feuchten und korrosiven Atmosphären. Swissbonding, Rapperswil am Zürichsee, Switzerland (2005)
Grundmeier, G.; Wapner, K.; Schönberger, B.; Stratmann, M.: Fundamentals and Applications of a new height regulated Scanning Kelvin Probe in Corrosion and Adhesion Science. ISE 2004, Thessaloniki, Greece (2004)
Grundmeier, G.; Wapner, K.; Schönberger, B.; Stratmann, M.: Introduction of a height regulated Scanning Kelvin Probe for the simultaneous measurement of surface topography and interfacial electrode potentials in corrosive environments. ISE Conference, 55th Annual Meeting, Thessaloniki, Greece (2004)
Grundmeier, G.; Wapner, K.: Water diffusion measurements in a model adhesive/silicon lap joint using FTIR-spectroscopy: Differentiation between bulk and interfacial diffusion. Euradh 2004, Freiburg, Germany (2004)
Wapner, K.; Grundmeier, G.: Extended Abstract: Water diffusion measurements in a model adhesive/silicon lap joint using FTIR-spectroscopy: differentiation between bulk and interfacial diffusion. Euradh2004/Adhesion2004, Freiburg, Germany (2004)
Wapner, K.; Stratmann, M.; Grundmeier, G.: Extended Abstract: Non-destructive, in-situ measurement of de-adhesion processes at buried adhesive/metal interfaces by means of a new scanning Kelvin probe blister Test. Euradh2004/Adhesion2004, Freiburg, Germany (2004)
Grundmeier, G.; Wapner, K.; Stratmann, M.: Applications of a new height regulated Scanning Kelvin Probe for the study of polymer/metal interfaces in corrosive environments. ICEPAM 2004, Helsinki, Finnland (2004)
Grundmeier, G.; Wapner, K.; Schönberger, B.; Stratmann, M.: Non-destructive, real time in-situ measurement of de-adhesion processes at buried adhesive/metal interfaces by means of a new Scanning Kelvin Probe Blister Test. Annual Meeting of the American Adhesion Society, Wilmington, UK (2004)
Wapner, K.; Grundmeier, G.: Application of the Scanning Kelvin Probe for the study of de-adhesion processes at thin film engineered adhesive/metal interfaces. Annual Meeting of the American Adhesion Society, Wilmington, UK (2004)
Posner, R.; Wapner, K.; Stratmann, M.; Grundmeier, G.: Hydrated Ion Transport at Polymer/Oxide/Metal-Interfaces in Non-Corrosive Atmosphere: Influence of Electric Field Gradients. Gordon Conference Graduate Research Seminar on Aqueous Corrosion, Colby Sawyer College, New London, NH, USA (2008)
Klimow, G.; Wapner, K.; Grundmeier, G.: Applications of a Scanning Kelvin Probe for Studying Modified Adhesive/Metal Interfaces under Corrosive and Mechanical Load. 3rd World Congress on Adhesion and Related Phenomena, WCARP-III, Beijing, China (2006)
Wapner, K.; Stratmann, M.; Grundmeier, G.: Non-destructive, In-Situ Measurement of De-Adhesion Processes at Buried Adhesive/Metal Interfaces by Means of a New Scanning Kelvin Probe Blister Test. EUROMAT 2005, Prague, Czech Republic (2005)
Wapner, K.; Stratmann, M.; Grundmeier, G.: The application of the scanning Kelvin probe for investigating the deadhesion of adhesives on iron and zinc. EURADH 2002, Glasgow, UK (2002)
Wapner, K.: Grenzflächenchemische und elektrochemische Untersuchungen zur Haftung und Enthaftung an modifizierten Klebstoff/Metall-Grenzflächen. Dissertation, Ruhr-Universität Bochum, Fakultät für Chemie, Bochum, Germany (2006)
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…
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…
Understanding hydrogen-assisted embrittlement of advanced structural materials is essential for enabling future hydrogen-based energy industries. A crucially important phenomenon in this context is the delayed fracture in high-strength structural materials. Factors affecting the hydrogen embrittlement are the hydrogen content,...
Understanding hydrogen-assisted embrittlement of advanced high-strength steels is decisive for their application in automotive industry. Ab initio simulations have been employed in studying the hydrogen trapping of Cr/Mn containing iron carbides and the implication for hydrogen embrittlement.
Within this project, we will investigate the micromechanical properties of STO materials with low and higher content of dislocations at a wide range of strain rates (0.001/s-1000/s). Oxide ceramics have increasing importance as superconductors and their dislocation-based electrical functionalities that will affect these electrical properties. Hence…