The role of impurity oxygen in hydrogen bubble nucleation in tungsten
The impurity role for hydrogen bubble nucleation is investigated based on first-principles
studies of the interaction between impurities (oxygen and carbon), hydrogen and vacancy in …
studies of the interaction between impurities (oxygen and carbon), hydrogen and vacancy in …
Molecular dynamics simulation of the formation, growth and bursting of bubbles in tungsten exposed to high fluxes of low energy deuterium
S Liu, S Dai, C Sang, J Sun, T Stirner… - Journal of Nuclear …, 2015 - Elsevier
Molecular dynamics simulations are carried out to investigate the formation, growth and
bursting of bubbles in tungsten exposed to the irradiation of an extremely high deuterium …
bursting of bubbles in tungsten exposed to the irradiation of an extremely high deuterium …
Dislocations mediate hydrogen retention in tungsten
D Terentyev, V Dubinko, A Bakaev, Y Zayachuk… - Nuclear …, 2014 - iopscience.iop.org
In this letter, a comprehensive mechanism for the nucleation and growth of bubbles on
dislocations under plasma exposure of tungsten is proposed. The mechanism reconciles …
dislocations under plasma exposure of tungsten is proposed. The mechanism reconciles …
First-principles calculations of hydrogen solution and diffusion in tungsten: Temperature and defect-trapping effects
The solubility and diffusivity of hydrogen in tungsten are fundamental and essential factors in
the application of this tungsten as a plasma-facing material, but data are scarce and largely …
the application of this tungsten as a plasma-facing material, but data are scarce and largely …
Molecular dynamics simulation of helium cluster diffusion and bubble formation in bulk tungsten
Molecular dynamics (MD) simulations have been performed to investigate the diffusion
behavior of helium (He) clusters in tungsten (W), because their diffusion properties provide …
behavior of helium (He) clusters in tungsten (W), because their diffusion properties provide …
A study of helium bubble production in 10 keV He+ irradiated tungsten
Helium bubble production in tungsten has been studied combining transmission electron
microscopy and in situ irradiations with 10 keV He+ ions. The irradiations were carried out at …
microscopy and in situ irradiations with 10 keV He+ ions. The irradiations were carried out at …
Molecular dynamics simulations on the effect of sub-surface helium bubbles on the sputtering yield of tungsten
Tungsten is being considered for the divertor in ITER and for future nuclear fusion reactors
because of its high melting temperature and high thermal conductivity. While the sputtering …
because of its high melting temperature and high thermal conductivity. While the sputtering …
Spatially dependent cluster dynamics model of He plasma surface interaction in tungsten for fusion relevant conditions
In fusion reactors, plasma facing components (PFC) and, in particular, the divertor will be
irradiated with high fluxes of low-energy (∼ 100 eV) helium and hydrogen ions. Tungsten is …
irradiated with high fluxes of low-energy (∼ 100 eV) helium and hydrogen ions. Tungsten is …
Hydrogen in tungsten as plasma-facing material
J Roth, K Schmid - Physica Scripta, 2011 - iopscience.iop.org
Materials facing plasmas in fusion experiments and future reactors are loaded with high
fluxes (10 20–10 24 m− 2 s− 1) of H, D and T fuel particles at energies ranging from a few eV …
fluxes (10 20–10 24 m− 2 s− 1) of H, D and T fuel particles at energies ranging from a few eV …
[HTML][HTML] A multi-technique analysis of deuterium trapping and near-surface precipitate growth in plasma-exposed tungsten
In this work, we examine how deuterium becomes trapped in plasma-exposed tungsten and
forms near-surface platelet-shaped precipitates. How these bubbles nucleate and grow, as …
forms near-surface platelet-shaped precipitates. How these bubbles nucleate and grow, as …