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Author:

Cheng, L. (Cheng, L..) | De Temmerman, G. (De Temmerman, G..) | Morgan, T. W. (Morgan, T. W..) | Schwarz-Selinger, T. (Schwarz-Selinger, T..) | Yuan, Y. (Yuan, Y..) | Zhou, H. B. (Zhou, H. B..) | Wang, B. (Wang, B..) (Scholars:王波) | Zhang, Y. (Zhang, Y..) (Scholars:张勇) | Lu, G. H. (Lu, G. H..)

Indexed by:

EI Scopus SCIE

Abstract:

Surface morphology and deuterium retention in tungsten exposed at surface temperature of similar to 550 K to mixed deuterium-neon plasmas of different neon concentrations are investigated. It is found that the addition of neon up to 20% mitigates blistering on the surface. Cross-section view of the surface shows the formation of pores near the surface in the depth less than 100 nm. Deuterium depth profile is featured by an enhanced deuterium concentration within a depth of 16 nm but a mitigated penetration in depth larger than 1 mu m. Deuterium retention is reduced by up to a factor of four. It is suggested the open pores formed in the surface serves as an escaping channel, mitigates deuterium penetration towards bulk and retention in the bulk.

Keyword:

tungsten plasma-material interaction deuterium retention neon

Author Community:

  • [ 1 ] [Cheng, L.]Beihang Univ, Sch Phys & Nucl Energy Engn, Beijing 100191, Peoples R China
  • [ 2 ] [Yuan, Y.]Beihang Univ, Sch Phys & Nucl Energy Engn, Beijing 100191, Peoples R China
  • [ 3 ] [Zhou, H. B.]Beihang Univ, Sch Phys & Nucl Energy Engn, Beijing 100191, Peoples R China
  • [ 4 ] [Zhang, Y.]Beihang Univ, Sch Phys & Nucl Energy Engn, Beijing 100191, Peoples R China
  • [ 5 ] [Lu, G. H.]Beihang Univ, Sch Phys & Nucl Energy Engn, Beijing 100191, Peoples R China
  • [ 6 ] [Cheng, L.]Beihang Univ, Beijing Key Lab Adv Nucl Mat & Phys, Beijing 100191, Peoples R China
  • [ 7 ] [Yuan, Y.]Beihang Univ, Beijing Key Lab Adv Nucl Mat & Phys, Beijing 100191, Peoples R China
  • [ 8 ] [Zhou, H. B.]Beihang Univ, Beijing Key Lab Adv Nucl Mat & Phys, Beijing 100191, Peoples R China
  • [ 9 ] [Zhang, Y.]Beihang Univ, Beijing Key Lab Adv Nucl Mat & Phys, Beijing 100191, Peoples R China
  • [ 10 ] [Lu, G. H.]Beihang Univ, Beijing Key Lab Adv Nucl Mat & Phys, Beijing 100191, Peoples R China
  • [ 11 ] [De Temmerman, G.]ITER Org, CS90 046, Route Vinon Verdon, F-13067 St Paul Les Durance, France
  • [ 12 ] [Morgan, T. W.]EURATOM, Trilateral Euregio Cluster, Dutch Inst Fundamental Energy Res, FOM Inst DIFFER, Eindhoven, Netherlands
  • [ 13 ] [Schwarz-Selinger, T.]Max Planck Inst Plasma Phys, EURATOM Assoc, Boltzmannstr 2, D-85748 Garching, Germany
  • [ 14 ] [Wang, B.]Beijing Univ Technol, Coll Mat Sci & Engn, Beijing, Peoples R China

Reprint Author's Address:

  • [Lu, G. H.]Beihang Univ, Sch Phys & Nucl Energy Engn, Beijing 100191, Peoples R China;;[Lu, G. H.]Beihang Univ, Beijing Key Lab Adv Nucl Mat & Phys, Beijing 100191, Peoples R China

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Source :

NUCLEAR FUSION

ISSN: 0029-5515

Year: 2017

Issue: 4

Volume: 57

3 . 3 0 0

JCR@2022

ESI Discipline: PHYSICS;

ESI HC Threshold:158

CAS Journal Grade:1

Cited Count:

WoS CC Cited Count: 30

SCOPUS Cited Count: 31

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 3

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