Název:
Tungsten-steel and tungsten-chromium composites prepared by RF plasma spraying
Autoři:
Matějíček, Jiří ; Klečka, Jakub ; Čížek, Jan ; Veverka, Jakub ; Vilémová, Monika ; Chráska, Tomáš ; Ganesh, V. Typ dokumentu: Příspěvky z konference Konference/Akce: 29th International Conference on Metallurgy and Materials, Brno (CZ), 20200520
Rok:
2020
Jazyk:
eng
Abstrakt: 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.
Klíčová slova:
composites; RF plasma spraying; tungsten Číslo projektu: GA19-14339S (CEP), 633053 Poskytovatel projektu: GA ČR Zdrojový dokument: Proceedings 29th International Conference on Metallurgy and Materials, ISBN 978-80-87294-97-0