Počet záznamů: 1
Manufacturing of W-steel joint using plasma sprayed graded W/steel-interlayer with current assisted diffusion bonding
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SYSNO ASEP 0548877 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Manufacturing of W-steel joint using plasma sprayed graded W/steel-interlayer with current assisted diffusion bonding Tvůrce(i) Ganesh, V. (DE)
Dorow-Gerspach, D. (DE)
Heuer, S. (DE)
Matějíček, Jiří (UFP-V) RID, ORCID
Vilémová, Monika (UFP-V) RID, ORCID
Bram, M. (DE)
Coenen, J.W. (DE)
Wirtz, M. (DE)
Pintsuk, G. (DE)
Theisen, W. (DE)
Linsmeier, Ch. (DE)Celkový počet autorů 11 Číslo článku 112896 Zdroj.dok. Fusion Engineering and Design. - : Elsevier - ISSN 0920-3796
Roč. 172, November (2021)Poč.str. 8 s. Jazyk dok. eng - angličtina Země vyd. CH - Švýcarsko Klíč. slova Functionally graded material ; Plasma spraying ; Spark plasma sintering ; W-steel joint Vědní obor RIV JG - Hutnictví, kovové materiály Obor OECD Materials engineering CEP GA17-23154S GA ČR - Grantová agentura ČR Způsob publikování Omezený přístup Institucionální podpora UFP-V - RVO:61389021 UT WOS 000710727700001 EID SCOPUS 85116916527 DOI 10.1016/j.fusengdes.2021.112896 Anotace The differences in the thermophysical properties between tungsten and steel create thermal stress peaks at its interface when joined directly for the breeding blanket of a fusion reactor. In order to solve this problem, a graded interlayer made of several layers of W/steel-composites is considered to reduce these stress peaks. Plasma spraying under an argon shrouded chamber was employed as a cost efficient manufacturing technique for such composites and field assisted sintering technology/spark plasma sintering was used to diffusion bond them with bulk-W and bulk-steel. Firstly, thermophysical characterizations were performed on these composites. Secondly, two approaches have been investigated to join bulk-W and 75 vol% W composite: direct joining and using a vanadium foil. Only vanadium foil resulted in successful bond formation at all the three bonding temperatures of 800 °C, 900 °C and 1000 °C. Thirdly, investigation of diffusion bonding parameters (temperature and time) for the joining of 25 vol% W, 50 vol% W, 75 vol% W and bulk-steel were studied and optimum process parameter were identified. Finally, this optimized parameter (1000 °C, 30 min) was employed to manufacture a complete 12 mm x 12 mm W-steel joint consisting of this graded interlayer. Pracoviště Ústav fyziky plazmatu Kontakt Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Rok sběru 2022 Elektronická adresa https://www.sciencedirect.com/science/article/pii/S0920379621006724?via%3Dihub
Počet záznamů: 1