Influence of grain boundaries on the radiation-induced defects and hydrogen in nanostructured and coarse-grained tungsten
We have studied the influence of grain boundaries (GBs) on the radiation-induced defect
evolution and on H retention at 300 K, both experimentally and by computer simulations. For …
evolution and on H retention at 300 K, both experimentally and by computer simulations. For …
Comparative study regarding the sputtering yield of nanocolumnar tungsten surfaces under irradiation
A Lopez-Cazalilla, C Cupak, M Fellinger… - Physical Review …, 2022 - APS
Nanostructured tungsten has been proposed as a promising option for plasma facing
materials in future fusion reactors, because compared to conventional tungsten it shows …
materials in future fusion reactors, because compared to conventional tungsten it shows …
Hydrogen diffusion and trapping in nanocrystalline tungsten
The hydrogen behavior in nanocrystalline W (ncW) samples with grain size of 5 and 10 nm
is studied using Molecular Dynamics (MD) with a bond order potential (BOP) for the W–H …
is studied using Molecular Dynamics (MD) with a bond order potential (BOP) for the W–H …
The influence of high grain boundary density on helium retention in tungsten
G Valles, C González, I Martin-Bragado… - Journal of Nuclear …, 2015 - Elsevier
In order to study the influence of a high grain boundary density on the amount, size and
distribution of defects produced by pulsed helium (625 keV) irradiation in tungsten, we have …
distribution of defects produced by pulsed helium (625 keV) irradiation in tungsten, we have …
H trapping and mobility in nanostructured tungsten grain boundaries: a combined experimental and theoretical approach
The trapping and mobility of hydrogen in nanostructured tungsten grain boundaries (GBs)
have been studied by combining experimental and density functional theory (DFT) data …
have been studied by combining experimental and density functional theory (DFT) data …
Hydrogen accumulation in nanostructured as compared to the coarse-grained tungsten
We report on the influence of sample microstructure and of irradiation conditions on the H
behaviour in Tungsten (W). For this purpose, commercial coarse grained (CGW) and …
behaviour in Tungsten (W). For this purpose, commercial coarse grained (CGW) and …
Experimental and computational studies of the influence of grain boundaries and temperature on the radiation-induced damage and hydrogen behavior in tungsten
M Panizo-Laiz, P Díaz-Rodríguez, A Rivera… - Nuclear …, 2019 - iopscience.iop.org
We study the influence of grain boundaries (GBs) on radiation-induced vacancies, as well as
on the hydrogen (H) behavior in tungsten (W) samples with different grain sizes in the …
on the hydrogen (H) behavior in tungsten (W) samples with different grain sizes in the …
Sputter yield reduction and fluence stability of numerically optimized nanocolumnar tungsten surfaces
C Cupak, A Lopez-Cazalilla, H Biber, J Brötzner… - Physical Review …, 2023 - APS
Nanocolumnar tungsten surfaces were investigated with numerical techniques regarding
their potential to reduce sputtering by ion bombardment. We simulated a large number of …
their potential to reduce sputtering by ion bombardment. We simulated a large number of …
[HTML][HTML] Coexistence of a self-interstitial atom with light impurities in a tungsten grain boundary
D Fernández-Pello, MA Cerdeira… - Journal of Nuclear …, 2022 - Elsevier
In this paper, we report on ab initio simulations results focused on completing a thorough
energetic, structural, charge and mobility analysis of the synergistic behaviour of diverse …
energetic, structural, charge and mobility analysis of the synergistic behaviour of diverse …
Fusion technology aspects of laser inertial fusion energy (LIFE)
This paper provides an overview of one option for LLNL's LIFE power plant design with a
focus on the fusion nuclear science and technology aspects. The design is based on 132 MJ …
focus on the fusion nuclear science and technology aspects. The design is based on 132 MJ …