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Helium-ion-implantation in tungsten: Progress towards a coherent understanding of the damage formed and its effects on properties

Abstract:

Tungsten is a likely material for divertor armour in fusion reactors. We describe recent progress combining multi-technique experiments with atomistic modelling to understand how injected helium interacts with displacement damage and modifies the physical properties of tungsten. Using X-ray micro-diffraction and laser-induced transient grating measurements, we observe both a lattice swelling and modulus change after helium implantation. Surprisingly, a fraction of a percent lattice expansion ...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1016/j.piutam.2017.03.040

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Institution:
University of Oxford
Division:
MPLS
Department:
Engineering Science
Role:
Author
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US Department of Energy More from this funder
John Fell Fund More from this funder
National Science Foundation More from this funder
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Publisher:
Elsevier Publisher's website
Journal:
2016 IUTAM Symposium on Nanoscale Physical Mechanics Journal website
Host title:
2016 IUTAM Symposium on Nanoscale Physical Mechanics
Publication date:
2017-06-22
Acceptance date:
2016-04-24
DOI:
EISSN:
2210-9838
Source identifiers:
735040
Keywords:
Pubs id:
pubs:735040
UUID:
uuid:992d58a5-d869-45ea-b985-d04ced9b65fe
Local pid:
pubs:735040
Deposit date:
2018-05-18

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