The research topics we are currently working on are:
- Dislocation dynamics in metallic systems: modelling and NMR
- Interfaces between metals and ceramics
- HRTEM and Local Probe Microscopy
- High-power lasers
- Interfaces in nanoceramics and technical ceramics: LV-HRSEM, X-rays
Structural aspects of single metal/ceramic interfaces are considered on different length scales: experiments are performed at an atomic scale on model systems produced by internal oxidation. Metal/ceramic multi-layers on a nanometer scale are manufactured using a novel process called stereostiction, from nanosized particles. At a micrometer scale metal/ceramic interfaces that find application as protective coatings are studied, being produced by high power lasers (1.5 kWatt CW- CO2 and 2 kWatt pulse Nd-YAG). The main experimental tools to unravel the microstructural features are High Resolution Transmission Electron Microscopy (HRTEM, Jeol 4000EX/II equipped with PEELS) and high resolution low-voltage Scanning Electron Microscopy (LV-HRSEM).
On the property-side a rather mesoscopic materials science approach is followed. Parallel to an experimental study using local probe microscopy and LV-HRSEM a computational materials science approach is undertaken. The latter study is carried out in collaboration with prof. E. van der Giessen (TU-Delft, MIDEG) and prof. V. Vitek (Un. Philadelphia). Bonding behaviour of metal/ceramic interfaces and mechanical performance are examined in collaboration with prof. G. de With (TU-Eindhoven, MIDEG) and dr. A.J. Huis in 't Veld (TNO).
