High resolution scanning transmission electron microscopy (HR STEM) analysis of re-deposited layer on ASDEX Upgrade tile

Marcin Rasiński , Elżbieta Fortuna , M. Mayer , R. Neu , Tomasz Płociński , Małgorzata Lewandowska , Krzysztof Kurzydłowski

Abstract

Erosion and re-deposition of plasma-facing components (PFCs) is one of the most important issues in fusion devices and as such it is an area of interest for many research groups. However, the structure and composition of re-deposited layers as well as the mechanism and condition of their formation are not yet fully described and understood. In the present study, the structure and the composition of co-deposited layers, which developed at the outer divertor strike point tiles in ASDEX Upgrade during the 2009 campaign were examined. High resolution scanning transmission electron microscopy (HRSTEM) combined with energy-dispersive X-ray spectroscopy (EDS) and electron energy loss spectroscopy (EELS) have been used to identify deposits composition and morphology. Tungsten foam like structure and co-deposits rich in tungsten, oxygen, carbon, boron and nitrogen were observed. © 2011 Elsevier B.V. All rights reserved.
Author Marcin Rasiński (FMSE / DMD)
Marcin Rasiński,,
- Division of Materials Design
, Elżbieta Fortuna (FMSE / DMD)
Elżbieta Fortuna,,
- Division of Materials Design
, M. Mayer - [Max Planck Institut für Plasmaphysik]
M. Mayer,,
-
-
, R. Neu - [Max Planck Institut für Plasmaphysik]
R. Neu,,
-
-
, Tomasz Płociński (FMSE / DMD)
Tomasz Płociński,,
- Division of Materials Design
, Małgorzata Lewandowska (FMSE / DMD)
Małgorzata Lewandowska,,
- Division of Materials Design
, Krzysztof Kurzydłowski (FMSE / DMD)
Krzysztof Kurzydłowski,,
- Division of Materials Design
Journal seriesFusion Engineering and Design, ISSN 0920-3796, (A 25 pkt)
Issue year2011
Vol86
No9-11
Pages1753 - 1756
Publication size in sheets0.5
Keywords in EnglishASDEX Upgrade; Divertor; Electron microscopy; Erosion; PFCs lifetime; Re-deposition
ASJC Classification2210 Mechanical Engineering; 2500 General Materials Science; 2104 Nuclear Energy and Engineering; 2205 Civil and Structural Engineering
DOIDOI:10.1016/j.fusengdes.2011.02.085
URL https://www.scopus.com/inward/record.uri?eid=2-s2.0-80054025438&partnerID=40&md5=fbd5c90a8b030ed54e2cad7140eb16e8
Languageen angielski
File
High-resolution-scanning-transmission-electron-microscopy_2011_Fusion-Engine.pdf 432.42 KB
Score (nominal)25
Score sourcejournalList
Publication indicators WoS Citations = 4; Scopus Citations = 4; Scopus SNIP (Source Normalised Impact per Paper): 2014 = 1.26; WoS Impact Factor: 2011 = 1.49 (2) - 2011=1.328 (5)
Citation count*5 (2020-01-31)
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