Počet záznamů: 1
Interaction of powerful hot plasma and fast ion streams with materials in dense plasma focus devices
- 1.
SYSNO ASEP 0472591 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Interaction of powerful hot plasma and fast ion streams with materials in dense plasma focus devices Tvůrce(i) Chernyshova, M. (PL)
Gribkov, V. A. (PL)
Kowalska-Strzeciwilk, E. (PL)
Kubkowska, M. (PL)
Miklaszewski, R. (PL)
Paduch, M. (PL)
Pisarczyk, T. (PL)
Zielinska, E. (PL)
Demina, E.V. (RU)
Pimenov, V. N. (RU)
Maslyaev, S. A. (RU)
Bondarenko, G.G. (RU)
Vilémová, Monika (UFP-V) RID, ORCID
Matějíček, Jiří (UFP-V) RID, ORCIDZdroj.dok. Fusion Engineering and Design. - : Elsevier - ISSN 0920-3796
Roč. 113, December (2016), s. 109-118Poč.str. 10 s. Forma vydání Tištěná - P Jazyk dok. eng - angličtina Země vyd. CH - Švýcarsko Klíč. slova Radiation damageability ; Materials tests ; Plasma focus ; Plasma streams ; Ion beams ; Laser interferometrya Vědní obor RIV JF - Jaderná energetika Obor OECD Nuclear related engineering CEP GA14-12837S GA ČR - Grantová agentura ČR Institucionální podpora UFP-V - RVO:61389021 UT WOS 000390733200016 EID SCOPUS 85003422020 DOI 10.1016/j.fusengdes.2016.11.003 Anotace A process of irradiating and ablating solid-state targets with hot plasma and fast ion streams in two Dense Plasma Focus (DPF) devices - PF-6 and PF-1000 was examined by applying a number of diagnostics of nanosecond time resolution. Materials perspective for use in chambers of the mainstream nuclear fusion facilities (mainly with inertial plasma confinement like NIF and Z-machine), intended both for the first wall and for constructions, have been irradiated in these simulators. Optical microscopy, SEM, Atomic Emission Spectroscopy, images in secondary electrons and in characteristic X-ray luminescence of different elements, and X-ray elemental analysis, gave results on damageability for a number of materials including low-activated ferritic and austenitic stainless steels, beta-alloy of Ti, as well as two types of W and a composite on its base. With an increase of the number of shots irradiating the surface, its morphology changes from weakly pronounced wave-like structures or ridges to strongly developed ones. At later stages, due to the action of the secondary plasma produced near the target materials they melted, yielding both blisters and a fracturing pattern: first along the grain and then "in-between" the grains creating an intergranular net of microcracks. At the highest values of power flux densities multiple bubbles appeared. Furthermore, in this last case the cracks were developed because of microstresses at the solidification of melt. Presence of deuterium within the irradiated ferritic steel surface nanolayers is explained by capture of deuterons in lattice defects of the types of impurity atoms, pores and oxycarbonitride particles existed in the material. Pracoviště Ústav fyziky plazmatu Kontakt Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Rok sběru 2017
Počet záznamů: 1