The pulse plasma flows application in material science and nanotechnology

Zhukeshov, A. M.; Nikulin, V. Ya.; Gabdullina, A. T.; Amrenova, A. U.; Mukhamedryskyzy, M.; Moldabekov, Zhangaly

doi:10.1063/1.5135502

Cited by 5 publications

(6 citation statements)

References 13 publications

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“…After irradiation surface of the specimens formed wave-like relief, resulting in process remelting, evaporation and sputtering etc. [10,12,13]. Analysis of the surface materials shows that erosion of the melt layer occurs mainly due to two erosion mechanisms: due to the ejection of metal drops from the target surface and due to the movement of the melt along the target surface.…”

Section: Resultsmentioning

confidence: 99%

“…One of the most important tasks of plasma physics [1] is to study the resistance of materials of the first wall, the divertor and other nodes of the thermonuclear reactor to stationary plasma-thermal effects with a capacity of up to 20 mW/m 2 and intense pulsed duration of 0.1-10 ms and a power of 1-10 GW/m 2 [1][2][3]. Many of the basic problems investigated and solved but one of the main problems still not enough investigated is connected with material science and radiation nuclear physics [1][2][3][4][5][6][7][8][9][10][11][12]. They are long lasting irradiation and heat loads that are generated in the fusion devices affect the construction materials and appearance different of defects on the surface materials.…”

Section: Introductionmentioning

confidence: 99%

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Experimental Study of the Mechanism Erosion Materials Exposed to Low Plasma Power Flows

Moldabekov

Zhukeshov

Никуллин

et al. 2021

jour

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In this paper, a low activation of ferritic-austentic steel was studied when it was exposed with plasma. The experiment was carried out on a plasma focus device with energy of 1.9 kJ, with a pressure of 2.5 torr of deuterium. AFM analysis shows that cracks up to 2 microns and holes from 81 to 281 nm are found on steel surfaces. The mechanism of the occurrence of erosion of low-activation ferritic-austentic steel is also indicated. It is established that the mechanism of erosion depends on the momentum.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Experimental Study of the Mechanism Erosion Materials Exposed to Low Plasma Power Flows

Moldabekov

Zhukeshov

Никуллин

et al. 2021

jour

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“…The studies of phenomena related to changes in the structure of the surface on the materials of the first wall and the divertor of thermonuclear installations under the influence of plasma beams have great importance [8]. Influence by plasma radiation, damage to the first wall materials, is characterized as sputtering, evaporation, mass loss, blistering, and other structural degradation [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

“…Due to such properties, tungsten intends to be used as a first-wall PFM of ITER. [5,9]. Also, molybdenum has a high melting point and high reflectivity retention after sputtering considered a candidate for the first mirror PFM [8,9].…”

Section: Introductionmentioning

confidence: 99%

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The INVESTIGATION OF RADIATION EFFECT ON TUNGSTEN AND MOLYBDENUM MATERIALS

Moldabekov

2023

ijmph

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This work studied damage and erosion of the tungsten and molybdenum after exposure to deuterium ions of a Plasma focus device. The main purpose and idea of this research work was an experimental investigation of surface changes on the tungsten and molybdenum materials at deuterium optimal gas pressure in the chamber of a PF device. Before and after irradiation the sample surfaces were analyzed using SEM, AFM and an optical microscope. The analysis showed that the change in surface relieves 0.0377 -0,0125 µm, different types of damage on materials dependent on irradiation parameters. With increasing the 10-30 number of shots, the micro-cracks 74-172 nm, and radiation swelling for molybdenum, also the crater, bubbles, holes 64-453 nm and cavities on the tungsten sample surface were observed respectively. It is established that a noticeable erosion for tungsten up to Δm=-31 mg and molybdenum Δm=-43 mg samples as a result of irradiation with plasma flows simulating a stationary regime occurs only at relatively high sample surface temperatures.

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