WCrY smart alloys as advanced plasma-facing materials – Exposure to steady-state pure deuterium plasmas in PSI-2

WCrY smart alloys as advanced plasma-facing materials – Exposure to steady-state pure deuterium plasmas in PSI-2

In this paper the impact of steady state pure D plasma on WCrY smart alloys at ion energies of 120 and 220 eV is reported. For this purpose a comparison with simultaneously exposed pure W samples is drawn. Different analysis techniques employed for pre- and post-plasma sample analysis hint at a sign...

Full description

Bibliographic Details
Main Authors: J. Schmitz, A. Litnovsky, F. Klein, T. Wegener, X.Y. Tan, M. Rasinski, A. Mutzke, P. Hansen, A. Kreter, A. Pospieszczyk, S. Möller, J.W. Coenen, Ch. Linsmeier, U. Breuer, J. Gonzalez-Julian, M. Bram
Format: Article
Language:English
Published: Elsevier 2018-05-01
Series:Nuclear Materials and Energy
Online Access:http://www.sciencedirect.com/science/article/pii/S2352179117301023
id doaj-a166a379a4bf4fe88532f8ac9b69e50c
record_format Article
spelling doaj-a166a379a4bf4fe88532f8ac9b69e50c2020-11-24T23:16:15ZengElsevierNuclear Materials and Energy2352-17912018-05-0115220225WCrY smart alloys as advanced plasma-facing materials – Exposure to steady-state pure deuterium plasmas in PSI-2J. Schmitz0A. Litnovsky1F. Klein2T. Wegener3X.Y. Tan4M. Rasinski5A. Mutzke6P. Hansen7A. Kreter8A. Pospieszczyk9S. Möller10J.W. Coenen11Ch. Linsmeier12U. Breuer13J. Gonzalez-Julian14M. Bram15Corresponding author.; Forschungszentrum Jülich GmbH, Institut für Energie- und Klimaforschung, Jülich, 52425, Germany; Department of Applied Physics, Ghent University, Ghent, 9000, BelgiumForschungszentrum Jülich GmbH, Institut für Energie- und Klimaforschung, Jülich, 52425, GermanyForschungszentrum Jülich GmbH, Institut für Energie- und Klimaforschung, Jülich, 52425, GermanyForschungszentrum Jülich GmbH, Institut für Energie- und Klimaforschung, Jülich, 52425, GermanyForschungszentrum Jülich GmbH, Institut für Energie- und Klimaforschung, Jülich, 52425, Germany; School of Materials Science and Engineering, Hefei University of Technology, Hefei, 230009, ChinaForschungszentrum Jülich GmbH, Institut für Energie- und Klimaforschung, Jülich, 52425, GermanyMax-Planck-Institute for Plasmaphysics, Wendelsteinstrasse 1, Greifswald, 17491, GermanyForschungszentrum Jülich GmbH, Institut für Energie- und Klimaforschung, Jülich, 52425, GermanyForschungszentrum Jülich GmbH, Institut für Energie- und Klimaforschung, Jülich, 52425, GermanyForschungszentrum Jülich GmbH, Institut für Energie- und Klimaforschung, Jülich, 52425, GermanyForschungszentrum Jülich GmbH, Institut für Energie- und Klimaforschung, Jülich, 52425, GermanyForschungszentrum Jülich GmbH, Institut für Energie- und Klimaforschung, Jülich, 52425, GermanyForschungszentrum Jülich GmbH, Institut für Energie- und Klimaforschung, Jülich, 52425, GermanyForschungszentrum Jülich GmbH, Zentralinstitut für Engineering, Elektronik und Analytik, Jülich, 52425, GermanyForschungszentrum Jülich GmbH, Institut für Energie- und Klimaforschung, Jülich, 52425, GermanyForschungszentrum Jülich GmbH, Institut für Energie- und Klimaforschung, Jülich, 52425, GermanyIn this paper the impact of steady state pure D plasma on WCrY smart alloys at ion energies of 120 and 220 eV is reported. For this purpose a comparison with simultaneously exposed pure W samples is drawn. Different analysis techniques employed for pre- and post-plasma sample analysis hint at a significant depletion of Cr and enrichment of W for lower ion energies. Preferential sputtering leads to enhanced volumetric loss at 220 eV. Analysis of redeposited material indicated local redeposition of Cr. Modelling the ion irradiation with SDTrimSP is used to further interpret experimental results. Depending on the sample temperature during plasma exposure and the magnitude of the ion flux, diffusion of Cr towards the surface is a determining factor for erosion of smart alloys for higher ion energies. Keywords: Smart alloys, Plasma-wall-interaction, Plasma ion irradiation, DEMO, W-based alloyshttp://www.sciencedirect.com/science/article/pii/S2352179117301023
collection DOAJ
language English
format Article
sources DOAJ
author J. Schmitz
A. Litnovsky
F. Klein
T. Wegener
X.Y. Tan
M. Rasinski
A. Mutzke
P. Hansen
A. Kreter
A. Pospieszczyk
S. Möller
J.W. Coenen
Ch. Linsmeier
U. Breuer
J. Gonzalez-Julian
M. Bram
spellingShingle J. Schmitz
A. Litnovsky
F. Klein
T. Wegener
X.Y. Tan
M. Rasinski
A. Mutzke
P. Hansen
A. Kreter
A. Pospieszczyk
S. Möller
J.W. Coenen
Ch. Linsmeier
U. Breuer
J. Gonzalez-Julian
M. Bram
WCrY smart alloys as advanced plasma-facing materials – Exposure to steady-state pure deuterium plasmas in PSI-2
Nuclear Materials and Energy
author_facet J. Schmitz
A. Litnovsky
F. Klein
T. Wegener
X.Y. Tan
M. Rasinski
A. Mutzke
P. Hansen
A. Kreter
A. Pospieszczyk
S. Möller
J.W. Coenen
Ch. Linsmeier
U. Breuer
J. Gonzalez-Julian
M. Bram
author_sort J. Schmitz
title WCrY smart alloys as advanced plasma-facing materials – Exposure to steady-state pure deuterium plasmas in PSI-2
title_short WCrY smart alloys as advanced plasma-facing materials – Exposure to steady-state pure deuterium plasmas in PSI-2
title_full WCrY smart alloys as advanced plasma-facing materials – Exposure to steady-state pure deuterium plasmas in PSI-2
title_fullStr WCrY smart alloys as advanced plasma-facing materials – Exposure to steady-state pure deuterium plasmas in PSI-2
title_full_unstemmed WCrY smart alloys as advanced plasma-facing materials – Exposure to steady-state pure deuterium plasmas in PSI-2
title_sort wcry smart alloys as advanced plasma-facing materials – exposure to steady-state pure deuterium plasmas in psi-2
publisher Elsevier
series Nuclear Materials and Energy
issn 2352-1791
publishDate 2018-05-01
description In this paper the impact of steady state pure D plasma on WCrY smart alloys at ion energies of 120 and 220 eV is reported. For this purpose a comparison with simultaneously exposed pure W samples is drawn. Different analysis techniques employed for pre- and post-plasma sample analysis hint at a significant depletion of Cr and enrichment of W for lower ion energies. Preferential sputtering leads to enhanced volumetric loss at 220 eV. Analysis of redeposited material indicated local redeposition of Cr. Modelling the ion irradiation with SDTrimSP is used to further interpret experimental results. Depending on the sample temperature during plasma exposure and the magnitude of the ion flux, diffusion of Cr towards the surface is a determining factor for erosion of smart alloys for higher ion energies. Keywords: Smart alloys, Plasma-wall-interaction, Plasma ion irradiation, DEMO, W-based alloys
url http://www.sciencedirect.com/science/article/pii/S2352179117301023
work_keys_str_mv AT jschmitz wcrysmartalloysasadvancedplasmafacingmaterialsexposuretosteadystatepuredeuteriumplasmasinpsi2
AT alitnovsky wcrysmartalloysasadvancedplasmafacingmaterialsexposuretosteadystatepuredeuteriumplasmasinpsi2
AT fklein wcrysmartalloysasadvancedplasmafacingmaterialsexposuretosteadystatepuredeuteriumplasmasinpsi2
AT twegener wcrysmartalloysasadvancedplasmafacingmaterialsexposuretosteadystatepuredeuteriumplasmasinpsi2
AT xytan wcrysmartalloysasadvancedplasmafacingmaterialsexposuretosteadystatepuredeuteriumplasmasinpsi2
AT mrasinski wcrysmartalloysasadvancedplasmafacingmaterialsexposuretosteadystatepuredeuteriumplasmasinpsi2
AT amutzke wcrysmartalloysasadvancedplasmafacingmaterialsexposuretosteadystatepuredeuteriumplasmasinpsi2
AT phansen wcrysmartalloysasadvancedplasmafacingmaterialsexposuretosteadystatepuredeuteriumplasmasinpsi2
AT akreter wcrysmartalloysasadvancedplasmafacingmaterialsexposuretosteadystatepuredeuteriumplasmasinpsi2
AT apospieszczyk wcrysmartalloysasadvancedplasmafacingmaterialsexposuretosteadystatepuredeuteriumplasmasinpsi2
AT smoller wcrysmartalloysasadvancedplasmafacingmaterialsexposuretosteadystatepuredeuteriumplasmasinpsi2
AT jwcoenen wcrysmartalloysasadvancedplasmafacingmaterialsexposuretosteadystatepuredeuteriumplasmasinpsi2
AT chlinsmeier wcrysmartalloysasadvancedplasmafacingmaterialsexposuretosteadystatepuredeuteriumplasmasinpsi2
AT ubreuer wcrysmartalloysasadvancedplasmafacingmaterialsexposuretosteadystatepuredeuteriumplasmasinpsi2
AT jgonzalezjulian wcrysmartalloysasadvancedplasmafacingmaterialsexposuretosteadystatepuredeuteriumplasmasinpsi2
AT mbram wcrysmartalloysasadvancedplasmafacingmaterialsexposuretosteadystatepuredeuteriumplasmasinpsi2
_version_ 1725588022107308032

Similar Items