Speaker
Dr
Slava Kuksenko
(United Kingdom Atomic Energy Authority)
Description
Beryllium is an essential material for target components material in the currently running (NuMI) and near-future multi-megawatt accelerator particle sources (LBNF), reflectors and moderators in material testing nuclear reactors, plasma facing material (JET, ITER) and potential neutron multiplier (DEMO) for fusion reactor designs, and it is under extensive investigation by fission, fusion reactors and proton accelerator facilities communities.
The presentation gives an overview of the recent results obtained in the Materials Research Facility of the UKAEA on beryllium samples:
• exposed to high energy protons in the NuMI beamline at 50ºC (maximum dose 0.5 dpa, 2000 appm of helium transmutant);
• after helium implantation at 50ºC and 200ºC (0.1 dpa, 2000 appm of helium);
• after neutron irradiation at different DEMO relevant conditions during HIDOBE-2 campaign in the HFR and investigated within the collaboration with Karlsruhe Institute of Technology (Germany).
• after thermal-shock experiments in the HiRadMat facility.
The main part of the paper will be devoted to the micromechanical tests results obtained using nanoindentation hardness measurements and microcantilevers fracture tests. The local properties data will be analyzed in combination with observed microstructural changes. The presentation will also give an overview of the future plans.
Primary author
Dr
Slava Kuksenko
(United Kingdom Atomic Energy Authority)
