Irradiation damage studies
Fusion engineering materials will be exposed to extreme irradiation fluences (>100 dpa). We investigate irradiation damage phenomena including solute clustering phenomena using Atom Probe (left) and helium gas accumulation using Transmission Electron Microscopy (right).
The first-wall materials must possess good oxidation resistance if it will withstand a loss-of-coolant accident scenario. We study corrosion performance using oxy-acetylene torch testing (right) and have developed and patented corrosion barriers for candidate WC-based materials (left).
The extreme conditions of a fusion reactor exceed the capabilities of industrially available materials, requiring new structures and composites to be engineered. We have developed metal-ceramic composite shielding materials, including W2B-W (left) and WC-FeCr (right) in which the metallic phase offers improved fracture toughness and manufacturability.