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Plasma sprayed tungsten-based coatings and their performance under fusion relevant conditions
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SYSNO ASEP 0027629 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Plasma sprayed tungsten-based coatings and their performance under fusion relevant conditions Author(s) Matějíček, Jiří (UFP-V) RID, ORCID
Koza, Y. (DE)
Weinzettl, Vladimír (UFP-V) RID, ORCIDSource Title Fusion Engineering and Design. - : Elsevier - ISSN 0920-3796
75-79, č. 0 (2005), s. 395-399Number of pages 5 s. Publication form web - web Action Symposium of Fusion Technology/23rd./ Event date 20.9.2004-24.9.2004 VEvent location Venice Country IT - Italy Event type WRD Language eng - English Country CH - Switzerland Keywords plasma spraying ; tungsten ; plasma facing components Subject RIV JG - Metallurgy CEZ AV0Z20430508 - UFP-V (2005-2011) UT WOS 000234072100068 DOI https://doi.org/10.1016/j.fusengdes.2005.06.006 Annotation Tungsten is a candidate material for plasma facing components for ITER and other fusion devices. Plasma spraying is among prospective fabrication technologies, thanks to its ability to coat large areas and the possibility to repair damaged parts. This paper reports on the development of tungsten-based plasma sprayed coatings and their behavior under high heat fluxes and in tokamak plasma. Several tungsten-based coatings were produced using water stabilized plasma spraying. Their basic properties (structure, composition, etc.) were characterized. Their behavior under high temperature plasma conditions was investigated at the small-size CASTOR tokamak. The samples were inserted into plasma at various radii and exposed by standard plasma discharges. Main plasma parameters, impurity radiation and specimen temperature evolution were observed. Only a local influence of the tungsten presence was found; no significant erosion was observed. Workplace Institute of Plasma Physics Contact Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Year of Publishing 2012
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