He-ion induced surface morphology change and nanofuzz growth on hot tungsten surfaces

FW Meyer - Journal of Physics B: Atomic, Molecular and Optical …, 2018 - iopscience.iop.org
Tungsten has been recently chosen as the divertor material in ITER and is a leading
candidate for use in DEMO and future fusion reactors. Linear plasma device and laboratory …

Helium effects on the surface and subsurface evolutions in single-crystalline tungsten

C Fan, C Li, CM Parish, Y Katoh, X Hu - Acta Materialia, 2021 - Elsevier
Tungsten (W) has been perceived as one of the most promising plasma facing materials
(PFMs) for future fusion reactors. In the past decade, its behavior under irradiation and …

Surface modification and helium release of tungsten irradiated by 40 keV helium ions

T Xia, Z Jiang, Y Shi, X Ren, W Zhang, M Wang… - Physica …, 2023 - iopscience.iop.org
The effects of grain boundaries and surface roughness on tungsten irradiated by 40 keV He
ions with a flux of 1.6× 10 17 He+/(m 2 s) to a fluence of 6.6× 10 21 He m− 2 at room …

Material migration in W and Mo during bubble growth and fuzz formation

MI Patino, D Nishijima, M Tokitani, D Nagata… - Nuclear …, 2021 - iopscience.iop.org
Growth of helium (He) induced bubbles and fuzz in tungsten (W) and molybdenum (Mo) is
investigated using samples of W films on Mo substrates and Mo films on W substrates …

A model of ballistic helium transport during helium-induced fuzz growth in tungsten

MI Patino, RP Doerner, MJ Baldwin… - Nuclear Materials and …, 2023 - Elsevier
Ballistic helium transport in tungsten during fuzz growth was investigated to provide insight
into the helium-induced nanostructuring process which adversely affects the near-surface …

Microstructural and elemental evolution of polycrystalline α-SiC irradiated with ultra-high-fluence helium ions before and after annealing

B Li, C Zhang, H Liu, L Xu, X Wang, Z Yang… - Fusion Engineering and …, 2020 - Elsevier
Helium atoms are the main reaction products that affect the properties of SiC, which is an
important structural material used in the nuclear industry. Understanding the behaviour of …

High throughput crystal structure and composition mapping of crystalline nanoprecipitates in alloys by transmission Kikuchi diffraction and analytical electron …

A Bhattacharya, CM Parish, J Henry, Y Katoh - Ultramicroscopy, 2019 - Elsevier
Statistically significant crystal structure and composition identification of nanocrystalline
features such as nanoparticles/nanoprecipitates in materials chemistry and alloy designing …

Influence of grain boundaries on the loop-punching mechanism and shape of helium bubbles in tungsten

J Ren, H Xie, F Yin, Y Lu, G Lu - Materials Today Communications, 2022 - Elsevier
In the present work, the growth of helium bubble at Σ3 (112)[110], Σ5 (013)[100] and Σ13
(015)[100] three grain boundaries in tungsten is studied using molecular dynamics …

The channeling effect of symmetrical tilt grain boundaries on helium bubbles in tungsten

J Ren, H Xie, F Yin, G Lu - Journal of Nuclear Materials, 2023 - Elsevier
Helium atoms can migrate easily and aggregate at various crystal defects, such as grain
boundaries, which promote the nucleation and growth of helium bubbles, ultimately causing …

A study of the formation of fuzzy tungsten in a HiPIMS plasma system

Z Ali, M Bahri, M Bilton, JW Bradley - Journal of Physics D …, 2024 - iopscience.iop.org
Nanostructured'fuzzy'tungsten has been grown for the first time in a high-power impulse
magnetron sputtering high power-impulse magnetron sputtering-(HiPIMS) system. The fuzzy …