[HTML][HTML] Challenges for plasma-facing components in nuclear fusion

J Linke, J Du, T Loewenhoff, G Pintsuk… - Matter and Radiation …, 2019 - pubs.aip.org
The interaction processes between the burning plasma and the first wall in a fusion reactor
are diverse: the first wall will be exposed to extreme thermal loads of up to several tens of …

A review of late-stage tungsten fuzz growth

JAR Wright - Tungsten, 2022 - Springer
Tungsten will be used as the plasma-facing divertor material in the International
Thermonuclear Experimental Reactor (ITER) fusion reactor. Under high temperatures and …

[HTML][HTML] Tungsten fuzz: Deposition effects and influence to fusion devices

S Kajita, N Yoshida, N Ohno - Nuclear Materials and Energy, 2020 - Elsevier
Helium (He) plasma irradiation to tungsten leads to formation of He bubbles and fiberform
nanostructures called fuzz on the surface. Although the fuzz growth condition and growth …

On the origin of 'fuzz'formation in plasma-facing materials

D Dasgupta, RD Kolasinski, RW Friddle, L Du… - Nuclear …, 2019 - iopscience.iop.org
Tungsten, the material used in the plasma-facing components (PFCs) of nuclear fusion
reactors, develops a fuzz-like surface morphology under typical reactor operating conditions …

Equation of state for He bubbles in W and model of He bubble growth and bursting near W {100} surfaces derived from molecular dynamics simulations

W Setyawan, D Dasgupta, S Blondel, G Nandipati… - Scientific Reports, 2023 - nature.com
Molecular dynamics (MD) simulations are performed to derive an equation of state (EOS) for
helium (He) bubbles in tungsten (W) and to study the growth of He bubbles under a W (100) …

Effects of surface anisotropy on the surface morphological response of plasma-facing tungsten

ON Patel, D Dasgupta, A Weerasinghe, BD Wirth… - Acta Materialia, 2024 - Elsevier
Surface free energy has been hypothesized as the cause behind the experimental evidence
(Parish et al., 2014) of a strong correlation between crystallographic orientation and surface …

Enhanced radiation resistance of W-based HEA under helium-ion irradiation conditions

K Wang, Y Yan, Y Xiong, S Zhao, D Chen… - Journal of Nuclear …, 2024 - Elsevier
Recently, high entropy alloy (HEA) has demonstrated superior radiation resistance to
energetic particles. In this paper, we examine the radiation response of W-based HEA …

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 …

Elastic properties of plasma-exposed tungsten predicted by molecular-dynamics simulations

A Weerasinghe, BD Wirth… - ACS applied materials & …, 2020 - ACS Publications
We report results of systematic molecular-dynamics computations of the elastic properties of
single-crystalline tungsten containing structural defects, voids and overpressurized He …

Helium bubble size effects on the surface morphological response of plasma-facing tungsten

ON Patel, D Dasgupta, BD Wirth… - Materials Research …, 2023 - iopscience.iop.org
We report a simulation study on the effects of helium (He) bubble size on the morphological
evolution and pattern formation on the surface of tungsten used as a plasma-facing …