Interaction of powerful hot plasma and fast ion streams with materials in dense plasma focus devices

Chernyshova, M.; Gribkov, V. A.; Kowalska-Strzeciwilk, E.; Kubkowska, M.; Miklaszewski, R.; Paduch, M.; Pisarczyk, T.; Zielinska, E.; Demina, E.V.; Pimenov, V. N.; Maslyaev, S. A.; Bondarenko, G.G.; Vilémová, Monika; Matějíček, Jiří

doi:https://dx.doi.org/10.1016/j.fusengdes.2016.11.003

Number of the records: 1

Interaction of powerful hot plasma and fast ion streams with materials in dense plasma focus devices

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SYSNO ASEP	0472591
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Interaction of powerful hot plasma and fast ion streams with materials in dense plasma focus devices
Author(s)	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, ORCID}
Source Title	Fusion Engineering and Design. - : Elsevier - ISSN 0920-3796 Roč. 113, December (2016), s. 109-118
Number of pages	10 s.
Publication form	Print - P
Language	eng - English
Country	CH - Switzerland
Keywords	Radiation damageability ; Materials tests ; Plasma focus ; Plasma streams ; Ion beams ; Laser interferometrya
Subject RIV	JF - Nuclear Energetics
OECD category	Nuclear related engineering
R&D Projects	GA14-12837S GA ČR - Czech Science Foundation (CSF)
Institutional support	UFP-V - RVO:61389021
UT WOS	000390733200016
EID SCOPUS	85003422020
DOI	10.1016/j.fusengdes.2016.11.003
Annotation	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.
Workplace	Institute of Plasma Physics
Contact	Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975
Year of Publishing	2017

Number of the records: 1