A5023088593- Nuclear Materials and Properties
- Fusion materials and technologies
- Advanced materials and composites
- Laser-Plasma Interactions and Diagnostics
- Nuclear reactor physics and engineering
- Advanced Materials Characterization Techniques
Forschungszentrum Jülich
2020-2023
Self-passivating tungsten based alloys for the first wall armor of future fusion reactors are expected to provide an important safety advantage compare pure in case a loss-of-coolant accident with simultaneous air ingress, due formation stable protective scale at high temperatures presence oxygen preventing volatile and radioactive WO3. In this work, Zr is added self-passivating W-10Cr-0.5Y alloy, manufactured by mechanical alloying HIP, view improving its strength thus, thermal shock...
Plasma-facing materials (PFMs) in the ITER divertor will be exposed to severe conditions, including exposure transient heat loads from edge-localized modes (ELMs) and plasma particles neutrons. Tungsten is material chosen as PFM for divertor. In previous tests, bubble formation ITER-grade tungsten was detected when fusion relevant conditions. For this study, simultaneous ELM-like D/He (6%) linear device PSI-2. Bubble then investigated via SEM micrographs FIB cuts. It found that 100.000 laser...