A study of bubble nucleation in tungsten using thermal desorption spectrometry: Clusters of 2 to 100 helium atoms

Kornelsen, E. V.; Gorkum, A.A. van

doi:10.1016/0022-3115(80)90144-0

Cited by 132 publications

(37 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…At the same time, however, the void size increases strongly with temperature which has been described in Ref. 22 albeit in the temperature range 730 C-1160 C. Also, studies of desorption of implanted helium from tungsten surfaces have shown the presence of desorption peaks at 730 C, 1230 C, and 1930 C, 17,23 There is therefore an interplay between helium bubble formation, coalescence, re-crystallization, and desorption influencing the final surface structure.…”

mentioning

confidence: 71%

Nanostructuring of molybdenum and tungsten surfaces by low-energy helium ions

Temmerman¹,

Bystrov²,

Zielinski³

et al. 2012

Journal of Vacuum Science &Amp; Technology A: Vacuum, Surfaces, and Films

122

102

View full text Add to dashboard Cite

Document VersionPublisher's PDF, also known as Version of Record (includes final page, issue and volume numbers)Please check the document version of this publication:• A submitted manuscript is the author's version of the article upon submission and before peer-review. There can be important differences between the submitted version and the official published version of record. People interested in the research are advised to contact the author for the final version of the publication, or visit the DOI to the publisher's website.• The final author version and the galley proof are versions of the publication after peer review.• The final published version features the final layout of the paper including the volume, issue and page numbers. Link to publication General rightsCopyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights.• Users may download and print one copy of any publication from the public portal for the purpose of private study or research.• You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the public portal ? Take down policyIf you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim. The formation of metallic nanostructures by exposure of molybdenum and tungsten surfaces to high fluxes of low energy helium ions is studied as a function of the ion energy, plasma exposure time, and surface temperature. Helium plasma exposure leads to the formation of nanoscopic filaments on the surface of both metals. The size of the helium-induced nanostructure increases with increasing surface temperature while the thickness of the modified layer increases with time.In addition, the growth rate of the nanostructured layer also depends on the surface temperature. The size of the nanostructure appears linked with the size of the near-surface voids induced by the low energy ions. The results presented here thus demonstrate that surface processing by low-energy helium ions provides an efficient route for the formation of porous metallic nanostructures.

show abstract

mentioning

confidence: 71%

Nanostructuring of molybdenum and tungsten surfaces by low-energy helium ions

Temmerman¹,

Bystrov²,

Zielinski³

et al. 2012

Journal of Vacuum Science &Amp; Technology A: Vacuum, Surfaces, and Films

122

102

View full text Add to dashboard Cite

show abstract

“…In fact, it is interstitial in nature, since interstitials are in surplus relative to vacancies, the latter having agglomerated with He atoms to form bubbles. The high binding energy of a large-vacancy-He complex render bubbles stable [51] and can also lead to defect clustering through the process of trap mutation [52] or loop punching [14]. Trap mutation is defined as a process in which over-pressurized bubbles emit interstitials in order to increase their volume, and loop punching is a similar process in which an interstitial-type dislocation loop is generated.…”

Section: Resultsmentioning

confidence: 99%

Tailoring molybdenum nanostructure evolution by low-energy He+ ion irradiation

Tripathi

Novakowski

Hassanein

2015

Applied Surface Science

View full text Add to dashboard Cite

“…8, indicating release properties whereby He is highly mobile yet also strongly bound to trapping mechanisms. Kornelsen and Van Gorkum have studied He desorption from W extensively [30]. By comparison with their work, the major release peaks of Fig.…”

Section: Discussionmentioning

confidence: 97%