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Vacuum CVD coatings Ta on target W plate of neutrons source

Vacuum CVD coatings Ta on target W plate of neutrons source

The paper presents data on the creation of a tungsten target, protected from corrosion under irradiation with a power of up to 100 kW. A protective coating of tantalum with a thickness of 250 µm was deposited on the surface of tungsten plates 66x66 mm, thickness 10; 6; 4; 3 mm. The coating has a sol...

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Bibliographic Details
Main Authors: Borts, B.V., Neklyudov, I.M., Polyakov, Yu.I., Rudenky, S.G., Lukirsky, Yu.V., Vorobyov, I.A., Lopata, А.А.
Format: Article
Language:English
Published: Національний науковий центр «Харківський фізико-технічний інститут» НАН України 2019
Series:Вопросы атомной науки и техники
Subjects:
Physics of radiotechnology and ion-plasma technologies
Online Access:http://dspace.nbuv.gov.ua/handle/123456789/195220
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Summary:The paper presents data on the creation of a tungsten target, protected from corrosion under irradiation with a power of up to 100 kW. A protective coating of tantalum with a thickness of 250 µm was deposited on the surface of tungsten plates 66x66 mm, thickness 10; 6; 4; 3 mm. The coating has a solid-phase compound over the entire surface of tungsten and is hermetic. This was achieved by CVD (chemical vapor deposition) tantalum deposition in a vacuum of 2.66·10⁻² Pa on a plate surface heated to ~ 1700 K using the thermal dissociation reaction of tantalum pentachloride vapor. Such tungsten plates, equipped with tantalum coatings with desired properties, were used in the Neutron Source installation of the NSC KIPT.

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