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W plus Cu and W plus Ni Composites and FGMs Prepared by Plasma Transferred Arc Cladding
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SYSNO ASEP 0555697 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title W plus Cu and W plus Ni Composites and FGMs Prepared by Plasma Transferred Arc Cladding Author(s) Matějíček, Jiří (UFP-V) RID, ORCID
Antoš, J. (CZ)
Rohan, P. (CZ)Number of authors 3 Article number 789 Source Title Materials. - : MDPI
Roč. 14, č. 4 (2021)Number of pages 11 s. Language eng - English Country CH - Switzerland Keywords plasma-facing materials ; W-based composites ; PTA cladding Subject RIV JP - Industrial Processing OECD category Materials engineering R&D Projects GA17-23154S GA ČR - Czech Science Foundation (CSF) Method of publishing Open access Institutional support UFP-V - RVO:61389021 UT WOS 000624097200001 DOI 10.3390/ma14040789 Annotation Tungsten-based materials are the most prospective candidates for plasma-facing components of future fusion devices, such as DEMO. W-based composites and graded layers can serve as stress-relieving interlayers for the joints between plasma-facing armor and the cooling or structural parts. Coating/cladding techniques offer the advantages of eliminating the joining step and the ability to coat large areas, even on nonplanar shapes. In this work, W + Cu and W + Ni composites were prepared by pulsed plasma transferred arc (PTA) cladding on several different substrates. Optimization of the process was carried out with respect to powder mixture composition and process parameters like arc current, plasma gas composition, and traverse velocity. Dense claddings of several millimeters thickness and various W content were achieved. Moreover, multilayers with W content gradually varying from 47 to 92% were formed. The structure, compositional profiles, and thermal properties of the claddings were characterized. Workplace Institute of Plasma Physics Contact Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Year of Publishing 2022 Electronic address https://www.mdpi.com/1996-1944/14/4/789
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