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Information × Registration Number 0217U006494, 0114U001807 , R & D reports Title Interaction of powerful plasma streams with the surfaces of materials in the conditions of the extreme power and particles loads of thermonuclear reactor popup.stage_title Head Makhlai Vadym Oleksandrovych, Кандидат фізико-математичних наук Registration Date 06-09-2017 Organization National Science Center "Kharkiv Institute of Physics and Technology popup.description2 The stability and modification of tungsten coatings of various thicknesses, which are considered as a potential alternative for plasma-facing elements of the thermonuclear reactor ITER, were studied. It is find that at application of thermal loads close to the melting point of tungsten, the morphology of the surface develops mainly due to the melting process and repeated solidification during plasma treatment. The modified layer includes a mixture of the coating material and the substrate. It was shown the possibility of effectively alloy the substrate material with tungsten. The concentration of tungsten in a modified layer achieved several atomic percent as a result of plasma treatment. The depth of penetration of tungsten into the modified layer of the steel sample is estimated at 0.4 ?m. A local increase of the concentration of tungsten in the near-surface layer will could significantly reduce the sputtering coefficient of the steel surface. The predictive estimates will be done on the base of the results obtained regarding the functioning of the divertor elements and the first wall of the thermonuclear reactor, which will be in contact with powerful plasma flows. Product Description popup.authors І.Є. Гаркуша В.В. Чеботарьов В.В. Яковлєва В.В.Стальцов В.О. Басаргін В.О. Махлай В.П.Єрьомін Г.К. Марченко Д.В. Єлісеєв Д.Г. Соляков Л.К. Ткаченко М.В.Кулик М.М. Аксьонов М.С. Ладигіна Н.М.Агаркова О.В. Бирка О.В.Скорина О.М.Бойко П.Б. Шевчук С.І. Лебедєв С.А. Трубчанінов С.С. Геращенко Т.М Чередніченко Т.О.Панаско Ю.В. Петров popup.nrat_date 2020-04-02 Close