Behavior of tungsten under irradiation and plasma interaction

M Rieth, R Doerner, A Hasegawa, Y Ueda… - Journal of Nuclear …, 2019 - Elsevier
In 1959 the Journal of Nuclear Materials (JNM) was founded and is now celebrating its
Diamond Anniversary year. The present paper is part of a series in which single JNM …

[HTML][HTML] 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 …

Growth of fiberform nanostructures on metal surfaces by helium plasma irradiation

S Kajita, AM Ito, K Ibano - Journal of Applied Physics, 2022 - pubs.aip.org
Helium plasma irradiation to various metals leads to peculiar morphology changes as
forming fiberform nanostructures called fuzz when a certain set of conditions is satisfied. In …

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 …

[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 …

Growth of nano-tendril bundles on tungsten with impurity-rich He plasmas

D Hwangbo, S Kajita, N Ohno, P McCarthy… - Nuclear …, 2018 - iopscience.iop.org
Isolated regions of nano-tendril bundles (NTBs) have been grown on tungsten surfaces
exposed to low-pressure direct-current helium plasma discharges operating with the …

Enhanced fuzzy tungsten growth in the presence of tungsten deposition

P McCarthy, D Hwangbo, M Bilton, S Kajita… - Nuclear …, 2020 - iopscience.iop.org
Using a magnetron sputtering device operating in helium, fibre-form'fuzz'has been grown on
tungsten samples in the presence of a significant auxiliary source of depositing tungsten. In …

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 …

[HTML][HTML] Growth origin of large-scale fiberform nanostructures in He–W co-deposition environment

K Hori, S Kajita, R Zhang, H Tanaka, N Ohno - Scientific Reports, 2023 - nature.com
When tungsten (W) is deposited with helium (He) plasma (He–W co-deposition) on W
surface, enhanced growth of fiberform nanostructure (fuzz) occurs, and sometimes it grows …

Morphologies of co-depositing W layer formed during He plasma irradiation

S Kajita, S Kawaguchi, N Yoshida, N Ohno… - Nuclear …, 2018 - iopscience.iop.org
Tungsten (W) samples were exposed to helium (He) plasmas with precipitation of W
particles. It was shown that visible large-scale fiberform nanostructures (LFNs) were formed …