Original title: Tungsten-steel and tungsten-chromium composites prepared by RF plasma spraying
Authors: Matějíček, Jiří ; Klečka, Jakub ; Čížek, Jan ; Veverka, Jakub ; Vilémová, Monika ; Chráska, Tomáš ; Ganesh, V.
Document type: Papers
Conference/Event: 29th International Conference on Metallurgy and Materials, Brno (CZ), 20200520
Year: 2020
Language: eng
Abstract: For future fusion reactors, materials able to withstand harsh environments are needed. In particular, this concerns the plasma-facing components which are foreseen to consist of tungsten based plasma-facing armor and structural and cooling part made of steel. Currently, joining of these materials presents a significant challenge. The stress concentration at their interface, which arises due to thermal exposure and the difference in thermal and mechanical properties, can be reduced by composite/graded interlayers. Plasma spraying is among the prospective technologies for their preparation. In this work, tungsten-steel and tungsten-chromium composites were prepared by radio-frequency inductively coupled plasma (RF-ICP) spraying. Initial optimization of the spraying process for pure materials as well as their mixtures was carried out. Basic characterization of the layers for their structure, porosity and composition is presented.
Keywords: composites; RF plasma spraying; tungsten
Project no.: GA19-14339S (CEP), 633053
Funding provider: GA ČR
Host item entry: Proceedings 29th International Conference on Metallurgy and Materials, ISBN 978-80-87294-97-0

Institution: Institute of Plasma Physics AS ČR (web)
Document availability information: Fulltext is available at external website.
External URL: https://www.confer.cz/metal/2020/read/3548-tungsten-steel-and-tungsten-chromium-composites-prepared-by-rf-plasma-spraying.pdf
Original record: http://hdl.handle.net/11104/0313054

Permalink: http://www.nusl.cz/ntk/nusl-432310


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