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 …
confinement nuclear fusion reactors, has been known for the last decade to form'fuzz'—a …
[HTML][HTML] Tungsten fuzz: Deposition effects and influence to fusion devices
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 …
nanostructures called fuzz on the surface. Although the fuzz growth condition and growth …
[HTML][HTML] Enhanced growth of large-scale nanostructures with metallic ion precipitation in helium plasmas
Helium plasma irradiation on metal surfaces leads to the formation of metallic fuzzy
nanostructures accompanied by the growth of helium bubbles in metals. The mechanism of …
nanostructures accompanied by the growth of helium bubbles in metals. The mechanism of …
Molecular dynamics and Monte Carlo hybrid simulation for fuzzy tungsten nanostructure formation
AM Ito, A Takayama, Y Oda, T Tamura… - Nuclear …, 2015 - iopscience.iop.org
For the purposes of long-term use of tungsten divertor walls, the formation process of the
fuzzy tungsten nanostructure induced by exposure to the helium plasma was studied. In the …
fuzzy tungsten nanostructure induced by exposure to the helium plasma was studied. In the …
Experimental identification for physical mechanism of fiber-form nanostructure growth on metal surfaces with helium plasma irradiation
S Takamura, Y Uesugi - Applied Surface Science, 2015 - Elsevier
The initial stage of fiber-form nanostructure growth on metal surface with helium plasma
irradiation is illustrated, taking recent research knowledge using a flux gradient technique …
irradiation is illustrated, taking recent research knowledge using a flux gradient technique …
Growth of multifractal tungsten nanostructure by He bubble induced directional swelling
Helium (He) plasma irradiation to tungsten (W) leads to morphology changes in nanometer
scale by the formation and growth of He bubbles. Initially pinholes and protrusions are …
scale by the formation and growth of He bubbles. Initially pinholes and protrusions are …
Increased photoelectrochemical performance of vanadium oxide thin film by helium plasma treatment with auxiliary molybdenum deposition
Helium (He) plasma treatment can be a versatile tool to fabricate nanostructures on a
surface and change the surface chemistry. Herein, vanadium (V) thin film is exposed to …
surface and change the surface chemistry. Herein, vanadium (V) thin film is exposed to …
Field emission from metal surfaces irradiated with helium plasmas
Field electron emission from metal (tungsten, molybdenum, and tantalum) surfaces with
different surface morphology was measured. Fuzz and loop samples had small increment in …
different surface morphology was measured. Fuzz and loop samples had small increment in …
Fuzzy nanostructure growth on precious metals by He plasma irradiation
Growth of helium bubbles near the surface of metals leads to various morphology changes
when sufficient helium ions are continuously implanted on the surface. In this study, low …
when sufficient helium ions are continuously implanted on the surface. In this study, low …
Material migration in W and Mo during bubble growth and fuzz formation
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 …
investigated using samples of W films on Mo substrates and Mo films on W substrates …