The mechanical properties of materials — how stiff or strong they are, or how easily they fracture — are of great importance for many engineering applications. My research work is to understand mechanical and physical properties of materials by performing and/or developing mechanical testing and by characterizing microstructures. The aim of these analyses is to determine suitability of materials for their field of applications.
In-situ deformation of materials
Characterizing and optimizing the mechanical properties of engineering components is one of the oldest research domains in materials science, nevertheless still very up-to-date. Mechanical tests followed by microstructural investigations provide engineers with the necessary information to computationally predict the mechanical performance of components. In-situ mechanical testing combined with diffraction (Laue and powder) and microscopy (SEM, TEM and AFM) is well known for studying the instantaneous evolution of microstructures during exposure to stress and/or temperature. Such an experiment allows capturing footprints of the deformation mechanisms responsible for the changing microstructure.
Characterisation of microstructures
Characterization of microstructural features plays a key-role in materials engineering and materials science. In this framework, I carry out different sort of analyses by advanced techniques including x-ray diffraction, scanning electron microscopy, transmission electron microscopy, and atomic force microscopy. Such studies allow bringing new insight on the comprehension of fundamental deformation mechanisms of materials.
- Fundamental deformation mechanisms of materials.
- Multiaxial and multiscale plasticity in metals.
- Theory of defect contrast by electron microscopy.