Powder modification under influence of heat, electric field and particle irradiation

Begrambekov, L. B.; Grunin, A. V.; Zakharov, A.M.

doi:10.1016/j.nimb.2015.01.072

Cited by 4 publications

(1 citation statement)

References 11 publications

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“…However, in the case of SnS, there is an important additional vapor-liquidcrystal mechanism during the vertical structures formation. Similar experimental results with the formation of vertical structures have been reported in porous boron and tungsten powders [29]. From the analysis of Figure 3, it can be seen that, when the exposure times were increased to 60 and 90 s (Figure 3c-f), the cone-shaped structures arrays on the surface were preserved; however, the height of the cones decreased, and the angle at the top of the cone increased.…”

Section: Resultssupporting

confidence: 85%

Modification of Nanocrystalline Porous Cu2-xSe Films during Argon Plasma Treatment

et al. 2021

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Cu2-xSe films were deposited on Corning glass substrates by radio frequency (RF) magnetron sputtering and annealed at 300 °C for 20 min under N2 gas ambient. The films had a thickness of 850–870 nm and a chemical composition of Cu1.75Se. The initial structure of the films was nanocrystalline with a complex architecture and pores. The investigated films were plasma treated with RF (13.56 MHz) high-density low-pressure inductively coupled argon plasma. The plasma treatment was conducted at average ion energies of 25 and 200 eV for durations of 30, 60, and 90 s. Notably, changes are evident in the surface morphology, and the chemical composition of the films changed from x = 0.25 to x = 0.10 to x = 0.00, respectively, after plasma treatment at average ion energies of 25 and 200 eV, respectively.

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Section: Resultssupporting

confidence: 85%

Modification of Nanocrystalline Porous Cu2-xSe Films during Argon Plasma Treatment

et al. 2021

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Characterization and origin of large size dust particles produced in the Alcator C-Mod tokamak

Arnas

Irby

Celli

et al. 2017

Nuclear Materials and Energy

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International audiencePost mortem analyses of dust collected in Alcator C-Mod have highlighted a production of large size dust particles. The quantities of such large particles are higher than in any other tokamak. They are divided in two classes as a function of their shape and consequently, their origin. Rounded dust particles such as spheres and splashes constitute the first class. These particles are the result of high heat loads on various leading edges of plasma facing components and possibly, their melting during plasma operation. The heated or already molten material can be destabilized during disruptions and droplets are emitted across the vacuum chamber. After solidification, the resulting rounded particles are either in pure elements or in alloys. Flake-like dust particles, which are mainly due to light material coating delamination, constitute the second class of dust particles

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Adhesive force distributions for tungsten dust deposited on bulk tungsten and beryllium-coated tungsten surfaces

Tolias

Riva

Angeli

et al. 2018

Nuclear Materials and Energy

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Powder modification under influence of heat, electric field and particle irradiation

Cited by 4 publications

References 11 publications

Modification of Nanocrystalline Porous Cu2-xSe Films during Argon Plasma Treatment

Modification of Nanocrystalline Porous Cu2-xSe Films during Argon Plasma Treatment

Characterization and origin of large size dust particles produced in the Alcator C-Mod tokamak

Adhesive force distributions for tungsten dust deposited on bulk tungsten and beryllium-coated tungsten surfaces

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