Please use this identifier to cite or link to this item: http://repository.kpi.kharkov.ua/handle/KhPI-Press/53856
Title: Structure evolution of tungsten coatings exposed to plasma flows under ITER ELM relevant conditions
Authors: Malykhin, S. V.
Surovitskiy, S. V.
Makhlaj, V. A.
Aksenov, N. N.
Byrka, O. V.
Borisova, S. S.
Herashchenko, S. S.
Reshetnyak, V. V.
Keywords: tungsten coatings; plasma flows; hydrogen plasma; recrystallization processes; X-rays
Issue Date: 2017
Publisher: Kharkiv Institute of Physics and Technology
Citation: Structure evolution of tungsten coatings exposed to plasma flows under ITER ELM relevant conditions / S. V. Malykhin [et al.] // Problems of atomic science and technology. Ser. : Plasma physics. – 2017. – No. 1 (107). – P. 123-125.
Abstract: Structure, substructure and stress parameters both on the surface and distributed by depth in the tungsten/steel coatings exposed to high energy hydrogen plasma fluxes were studied by X-ray diffraction methods. The hydrogen plasma exposure results in the following recrystallization processes in the thin surface layer of the coating: appearing the texture axis normal to the surface; increasing the coherence length from 60 nm in the initial state to 80 nm after the plasma exposure; completely annealed micro-strains; and dislocation density lowered twice in the exposed surface layer all these facts confirm the thermal character of the hydrogen plasma influence.
URI: http://repository.kpi.kharkov.ua/handle/KhPI-Press/53856
Appears in Collections:Кафедра "Фізика металів і напівпровідників"

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