Schemmann, L.; Zaefferer, S.: First experiences using a low-energy WDX spectrometer (LEXS) on a FEG-SEM for carbon determination on a martensitic steel. EMAS 2013, Porto, Portugal (2013)
Schemmann, L.; Zaefferer, S.; Raabe, D.: Influence of the inheritance of chemical elements on the transformation behaviour during intercritical annealing of DP steel strips. Euromat 2013, Sevilla, Spain (2013)
Zaefferer, S.: Techniques and application of 3D orientation microscopy based on EBSD tomography. GN-MEBA (groupement nationale de microscopie electronique a balayage) 2013, Paris, France (2013)
Zaefferer, S.: Combined Application of EBSD and ECCI for Crystal Defect Observation in Bulk Samples. GN-MEBA (groupement nationale de microscopie electronique a balayage) 2013, Paris, France (2013)
Zaefferer, S.; Elhami, N. N.: Theory and application of electron channelling contrast imaging (ECCI) of defects in metals. RMS EBSD 2013, Oxford, UK (2013)
Sandlöbes, S.; Friák, M.; Dick, A.; Zaefferer, S.; Pei, Z.; Zhu, L.-F.; Sha, G.; Ringer, S.; Neugebauer, J.; Raabe, D.: Combining ab initio calculations and high resolution experiments to improve the understanding of advanced Mg-Y and Mg-RE alloys. 7th Annual Conference of the ARC Centre of Excellence for Design in Light Metals, Melbourne, VIC, Australia (2012)
Konijnenberg, P. J.; Zaefferer, S.; Raabe, D.: Advanced analysis of 3D EBSD data obtained by FIB tomography. NVvM 2012 Materials Science Meeting, Eindhoven, The Netherlands (2012)
Tasan, C. C.; Zaefferer, S.; Raabe, D.: In-situ investigations of small strain plasticity in dual-phase steel. 23rd International Congress of Theoretical and Applied Mechanics (ICTAM), Beijing, China (2012)
Zaefferer, S.; Chen, J.; Konijnenberg, P.: A study on origin and nature of shear bands in cold rolled Mg-3Y alloy using 3D EBSD. 9th Intern. Conference on Magnesium alloys and their applications, Vancouver, Canada (2012)
Zaefferer, S.: An overview on techniques for the measurements of plastic and elastic strain by EBSD and related techniques. EBSD usermeeting der DGK, Hannover, Germany (2012)
Zaefferer, S.: Advanced applications of SEM-based electron diffraction techniques for the characterization of deformation structures of new steels. E-MRS 2012, Strasbourg, France, Strasbourg, France (2012)
Low dimensional electronic systems, featuring charge density waves and collective excitations, are highly interesting from a fundamental point of view. These systems support novel types of interfaces, such as phase boundaries between metals and charge density waves.
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 employ a metastability-engineering strategy to design bulk high-entropy alloys (HEAs) with multiple compositionally equivalent high-entropy phases.
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.
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.
Efficient harvesting of sunlight and (photo-)electrochemical conversion into solar fuels is an emerging energy technology with enormous promise. Such emerging technologies depend critically on materials systems, in which the integration of dissimilar components and the internal interfaces that arise between them determine the functionality.
Enabling a ‘hydrogen economy’ requires developing fuel cells satisfying economic constraints, reasonable operating costs and long-term stability. The fuel cell is an electrochemical device that converts chemical energy into electricity by recombining water from H2 and O2, allowing to generate environmentally-friendly power for e.g. cars or houses…