Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Concentration-dependent diffusion of hydrogen in vitreous silica
KTH, School of Engineering Sciences (SCI), Theoretical Physics.
KTH, School of Chemical Science and Engineering (CHE), Chemistry, Surface and Corrosion Science.
KTH, School of Chemical Science and Engineering (CHE), Chemistry, Surface and Corrosion Science.
2006 (English)In: Journal of Applied Physics, ISSN 0021-8979, E-ISSN 1089-7550, Vol. 100, no 10, 104902-1-104902-5 p.Article in journal (Refereed) Published
Abstract [en]

We report diffusion experiments where hydrogen permeates through a 1 mm wall of vitreous silica at 550 °C with applied gas pressures of 70, 460, 840, and 1200 mbars. For each pressure, and at steady state, the flux and the amount of hydrogen in the material are measured. Within the experimental accuracy we find that the flux is proportional to the pressure and that the hydrogen amount increases with a falling gradient with respect to pressure. The result is a relationship between flux and mean concentration. A careful evaluation of the flux versus concentration relationship by means of the steady-state diffusion equation shows that the hydrogen diffusivity in the silica wall is concentration dependent and increases linearly with local concentration.

Place, publisher, year, edition, pages
2006. Vol. 100, no 10, 104902-1-104902-5 p.
Keyword [en]
Diffusion; Fluxes; Hydrogen; Pressure effects
National Category
Chemical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-7048DOI: 10.1063/1.2386944ISI: 000242408000105Scopus ID: 2-s2.0-33845192904OAI: oai:DiVA.org:kth-7048DiVA: diva2:11940
Note
QC 20100705Available from: 2007-05-08 Created: 2007-05-08 Last updated: 2017-12-14Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textScopusJournal of Applied Physics

Search in DiVA

By author/editor
Rundgren, JohnDong, QianHultquist, Gunnar
By organisation
Theoretical PhysicsSurface and Corrosion Science
In the same journal
Journal of Applied Physics
Chemical Engineering

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 43 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf