10 papers
Machine-Learned Interatomic Potentials for Structural and Defect Properties of YBaCuO
Niccolò Di Eugenio, Ashley Dickson, Flyura Djurabekova +9
High-Temperature Superconductors (HTS) such as YBa2Cu3O7-delta (YBCO) are essential for next-generation Tokamak fusion reactors, where Rare-Earth Barium Copper Oxides (REBCO) form…
Defects and Impurity Properties of VN precipitates in ARAFM Steels: Modelling using a Universal Machine Learning Potential and Experimental Validation
R. S. Stroud, C. Reynolds, T. Melichar +7
VN precipitates used to strengthen ARAFM steels for fusion applications dissolve under high Fe ion irradiation (100 dpa at 10^-3 dpa s^-1, 600 C). This study examined point defects…
Insights Into Radiation Damage in YBaCuO From Machine-Learned Interatomic Potentials
Ashley Dickson, Niccolò Di Eugenio, Federico Ledda +10
Accurate prediction of radiation damage in YBaCuO (YBCO) is essential for assessing the performance of high-temperature superconducting (HTS) tapes in compact fusion…
The effect of multi-occupancy traps on the diffusion and retention of multiple hydrogen isotopes in irradiated tungsten and vanadium
Sanjeet Kaur, Daniel R. Mason, Prashanth Srinivasan +5
We propose a computational scheme for the diffusion and retention of multiple hydrogen isotopes (HI) with multi-occupancy traps parameterized by first principles calculations. We s…
An empirical potential to simulate helium and hydrogen in highly irradiated tungsten
Samanyu Tirumala, Daniel R. Mason, Oliver Shattock +3
Materials used in commercial D-T fusion reactors will be exposed to irradiation and a mixture of helium and hydrogen plasma. Modeling the microstructural evolution of such material…
Threshold Displacement Energies of Oxygen in YBaCuO: A Multi-Physics Analysis
Ashley Dickson, Mark R. Gilbert, Duc Nguyen-Manh +1
Neutron bombardment of high temperature superconducting (HTS) magnets may compromise the integrity of the magnetic confinement in future fusion reactors. The amount of damage produ…