Helium, hydrogen, and fuzz in plasma-facing materials

KD Hammond - Materials Research Express, 2017 - iopscience.iop.org
Tungsten, the primary material under consideration as the divertor material in magnetic-
confinement nuclear fusion reactors, has been known for the last decade to form'fuzz'—a …

High-flux He+ irradiation effects on surface damages of tungsten under ITER relevant conditions

L Liu, D Liu, Y Hong, H Fan, W Ni, Q Yang, Z Bi… - Journal of Nuclear …, 2016 - Elsevier
A large-power inductively coupled plasma source was designed to perform the continuous
helium ions (He+) irradiations of polycrystalline tungsten (W) under International …

Preparation of pure tungsten via various rolling methods and their influence on macro-texture and mechanical properties

X Zhang, Q Yan, S Lang, Y Wang, C Ge - Materials & Design, 2017 - Elsevier
It's necessary to investigate the texture characteristics of tungsten (W) to improve the
functional properties and structural performance simultaneously. Rolling route is an …

Diffusion, trap**, and dissociation behaviours of helium at the Σ5 grain boundary in tungsten: A molecular dynamics study

B Fu, M Qiu, J Cui, J Wang, Q Hou - Journal of Nuclear Materials, 2021 - Elsevier
Tungsten (W) is a promising candidate for plasma-facing materials in future fusion devices
because of its excellent properties. Quantitatively understanding and describing the …

[HTML][HTML] Irradiation effects of hydrogen and helium plasma on different grade tungsten materials

X Liu, YY Lian, H Greuner, B Boeswirth, YZ **… - Nuclear Materials and …, 2017 - Elsevier
Fine-grain tungsten alloys could be one of the solutions for the plasma facing materials of
future DEMO reactors. In order to evaluate the service performances of the newly developed …

Evolution of hot rolling texture in pure tungsten and lanthanum oxide doped tungsten with various reductions

X Zhang, Q Yan, S Lang, Y Wang, C Ge - Materials & Design, 2016 - Elsevier
Textures of hot rolled pure tungsten (PW) and W-1.0 wt% La 2 O 3 (W-1% La 2 O 3) with
various strains were characterized to figure out the effect of rolling reduction and second …

Thermal conductivity measurement of the He-ion implanted layer of W using transient thermoreflectance technique

S Qu, Y Li, Z Wang, Y Jia, C Li, B Xu, W Chen… - Journal of Nuclear …, 2017 - Elsevier
Transient thermoreflectance method was applied on the thermal conductivity measurement
of the surface damaged layer of He-implanted tungsten. Uniform damages tungsten surface …

[HTML][HTML] Decrease of blistering on Helium irradiated tungsten surface via transversal release of helium from the grooved surfaces

S **ao, Y Ma, L Tian, M Li, C Qi, B Wang - Nuclear Materials and Energy, 2020 - Elsevier
Although tungsten is considered as one of the primary candidates for plasma-facing material
(PFM) in future fusion reactors, blistering induced by plasma irradiation adversely affects …

The Influence of Crystal Orientation and Thermal State of a Pure Cu on the Formation of Helium Blisters

D Shtuckmeyster, N Maman, M Vaknin, G Zamir… - Metals, 2024 - mdpi.com
The factors that influence the formation of helium blisters in copper were studied, including
crystallographic grain orientation and thermomechanical conditions. Helium implantation …

Surface modification of W–V alloy exposed to high heat flux helium neutral beams

J Wang, C Li, Y Yuan, H Greuner, L Cheng… - Nuclear …, 2018 - iopscience.iop.org
Surface modification of tungsten vanadium (W–V) alloy under high heat flux helium particle
bombardment has been studied. W–5 wt.% V samples were irradiated by repeated helium …