Posner, R.; Wapner, K.; Amthor, S.; Roschmann, K. J.; Grundmeier, G.: Electrochemical investigation of the coating/substrate interface stability for styrene/acrylate copolymer films applied on iron. Corrosion Science 52 (1), pp. 37 - 44 (2010)
Posner, R.; Titz, T.; Wapner, K.; Stratmann, M.; Grundmeier, G.: Transport processes of hydrated ions at polymer/oxide/metal interfaces. Part 2: Transport on oxide covered iron and zinc surfaces. Electrochimica Acta 54 (33), pp. 900 - 908 (2009)
Posner, R.; Wapner, K.; Stratmann, M.; Grundmeier, G.: Transport processes of hydrated ions on oxide covered iron and zinc surfaces and interfaces. Part 1: Transport at polymer/oxide/metal interfaces. Electrochimica Acta 54 (3), pp. 891 - 899 (2009)
Wapner, K.; Stratmann, M.; Grundmeier, G.: Structure and stability of adhesion promoting aminopropyl phosphonate layers at polymer/aluminium oxide interface. International Journal of Adhesion and Adhesives 28 (1-2), pp. 59 - 70 (2008)
Wapner, K.; Stratmann, M.; Grundmeier, G.: In-situ Infrared Spectroscopic and Scanning Kelvin Probe Measurements of Water and Ion Transport Kinetics at Polymer/Metal Interfaces. Electrochimica Acta 51 (16), pp. 3303 - 3315 (2006)
Wapner, K.; Grundmeier, G.: Spectroscopic analysis of the interface chemistry of ultra-thin plasma polymer films on iron. Surface and Coatings Technology 200 (1-4), pp. 100 - 103 (2005)
Wapner, K.; Grundmeier, G.: Application of the Scanning Kelvin Probe for the Study of the Corrosion Resistance of Interfacial Thin Silicon Organic Films at Adhesive/Metal Interfaces. Silicon Chemistry 2 (5-6), pp. 235 - 245 (2005)
Wapner, K.; Schoenberger, B.; Stratmann, M.; Grundmeier, G.: Height-regulating scanning Kelvin probe for simultaneous measurement of surface topology and electrode potentials at buried polymer/metal interfaces. Journal of the Electrochemical Society 152 (3), pp. E114 - E122 (2005)
Wapner, K.; Schönberger, B.; Stratmann, M.; Grundmeier, G.: Applications of a new height regulated Scanning Kelvin Probe in Adhesion and Corrosion Science. Journal of the Electrochemical Society 152 (3), pp. E114 - E122 (2005)
Wapner, K.; Grundmeier, G.: Spatially resolved measurements of the diffusion of water in a model adhesive/silicon lap joint using FTIR-transmission-microscopy. International Journal of Adhesion and Adhesives 24 (3), pp. 193 - 200 (2004)
Wapner, K.; Grundmeier, G.: Scanning Kelvin Probe Studies of Ion Transport and De-Adhesion Processes at Polymer/Metal-Interfaces. In: Adhesion – Current Research and Applications, 31, pp. 507 - 524 (Ed. Possart, W.). Wiley VCH (2005)
Klimow, G.; Wapner, K.; Grundmeier, G.: Applications of a Scanning Kelvin Probe for Studying Modified Adhesive/Metal Interfaces under Corrosive and Mechanical Load. In: Proceedings of the 3rd World Congress on Adhesion and Related Phenomena WCARP-III, Beijing/China (2006). 3rd World Congress on Adhesion and Related Phenomena, WCARP-III, Beijing, China, October 15, 2006 - October 18, 2006. (2006)
Wapner, K.; Grundmeier, G.: Spectroscopic and Electrochemical Measurements of Water and Ion Transport at Adhesive/Metal Interphases. In: Proceedings of the 3rd World Congress on Adhesion and Related Phenomena. 3rd World Congress on Adhesion and Related Phenomena, WCARP-III, Beijing, China, October 15, 2006 - October 18, 2006. (2006)
Wapner, K.; Stratmann, M.; Grundmeier, G.: The application of the scanning Kelvin probe for investigating the deadhesion of adhesives on iron and zinc. In: EURADH. IOM Communications, pp. 24 - 27. EURADH. IOM Communications, Glasgow, UK. (2002)
Posner, R.; Marazita, M.; Wapner, K.; Amthor, S.; Roschmann, K. J.; Grundmeier, G.: The polymer network structure as a key parameter for the corrosion resistance of polymer/oxide/metal interfaces. ISE Spring Meeting 2010, Columbus, OH/USA (2010)
Titz, T.; Wapner, K.; Grundmeier, G.: Structure and Properties of Ultra-Thin SiO2 Plasma Polymer Films at Polymer/Metal Interfaces. 53rd International Symposium of the American Vacuum Society, San Francisco, CA, USA (2006)
Grundmeier, G.; Klimow, G.; Wapner, K.: Applications of a Height-Regulated Scanning Kelvin Probe Blister Test in Corrosion and Adhesion Science. 57th Annual Meeting of the International Society of Electrochemistry, Edinburgh, UK (2006)
Titz, T.; Wapner, K.; Grundmeier, G.: Structure and properties of ultra-thin SiO2 plasma polymer films at polymer/metal interfaces. 11th ECASIA, Vienna, Austria (2005)
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 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.
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.
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…