Počet záznamů: 1
High Heat Flux Testing of Graded W-Steel Joining Concepts for the First Wall
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SYSNO ASEP 0573323 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název High Heat Flux Testing of Graded W-Steel Joining Concepts for the First Wall Tvůrce(i) Ganesh, V. (DE)
Dorow-Gerspach, D. (DE)
Bram, M. (DE)
Linsmeier, Ch. (DE)
Matějíček, Jiří (UFP-V) RID, ORCID
Vilémová, Monika (UFP-V) RID, ORCIDCelkový počet autorů 6 Číslo článku 3664 Zdroj.dok. Energies. - : MDPI
Roč. 16, č. 9 (2023)Poč.str. 12 s. Jazyk dok. eng - angličtina Země vyd. CH - Švýcarsko Klíč. slova atmospheric plasma spraying (APS) ; functionally graded material (FGM) ; high heat flux (HHF) ; spark plasma sintering (SPS) ; W-steel Vědní obor RIV JG - Hutnictví, kovové materiály Obor OECD Materials engineering Způsob publikování Open access Institucionální podpora UFP-V - RVO:61389021 UT WOS 000986920400001 EID SCOPUS 85159379332 DOI 10.3390/en16093664 Anotace The realization of the first wall (FW), which is composed of a protective tungsten (W) armor covering the structural steel material, is a critical challenge in the development of future fusion reactors. Due to the different coefficients of thermal expansion (CTE) of W and steel, the direct joining of them results in cyclic thermal stress at their bonding seam during the operation of the fusion reactor. To address this issue, this study benchmarks two joining concepts. The first concept uses an atmospheric plasma sprayed graded interlayer composed of W/steel composites with a varying content of W and steel to gradually change the CTE. The second concept uses a spark plasma sintered graded interlayer. Furthermore, in order to benchmark these concepts, a directly bonded W-steel reference joint as well as a W-steel joint featuring a vanadium interlayer were also tested. These joints were tested under steady-state high heat flux cyclic loading, starting from a heat flux of 1 MW/m2 up to 4.5 MW/m2, with stepwise increments of 0.5 MW/m2. At each heat flux level, 200 thermal cycles were performed. The joints featuring a sintered graded interlayer survived only until 1.5 MW/m2 of loading, while the joint featuring plasma sprayed graded interlayer and V interlayer survived until 3 MW/m2. Pracoviště Ústav fyziky plazmatu Kontakt Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Rok sběru 2024 Elektronická adresa https://www.mdpi.com/1996-1073/16/9/3664
Počet záznamů: 1