Dipl. Phys. Mathias Köhler
Main Focus
The influence of the chemical
composition of Co-based metallic glasses on the electronic structure,
topology, stiffness and fracture toughness is investigated. The material selection
for the experiments is based on our ab initio MD data. For efficient
investigation a physical vapour deposition combinatorial approach will
be applied. Selected metallic glass compositions will be grown in the
bulk form to further characterize relevant mechanical properties, such
as fracture toughness. Topological and chemical ordering is analysed by
atom probe tomography, selected area electron diffraction with a
transmission electron microscope and high energy XRD techniques. It is
envisioned that based on this research strategy the basic physical and
chemical design principles required to realize future knowledge-based
design of metallic glasses with high strength and stiffness as well as
toughness can be identified.