Diffusion of helium in FCC metals

Diffusion constants of helium in gold, silver and aluminium are determined from thermal desorption experiments, giving: Au: D 0 = 10 −1.0 cm 2 /sec, ΔH = 1.70 eV Ag: D 0 = 10 −1.2 cm 2 /sec, ΔH = 1.50 eV Al: D 0 = 10 +0.1 cm 2 /sec, ΔH = 1.35 eV The results are compared to self-diffusion and to the...

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Veröffentlicht in:	Radiation effects 1983-01, Vol.78 (1-4), p.87-99
Hauptverfasser:	Sciani, V., Jung, P.
Format:	Artikel
Sprache:	eng
Schlagworte:	Condensed matter: structure, mechanical and thermal properties Cross-disciplinary physics: materials science rheology Diffusion in solids Diffusion of impurities Exact sciences and technology Materials science Metals, semimetals and alloys Physics Specific materials Transport properties of condensed matter (nonelectronic)
Online-Zugang:	Volltext
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Zusammenfassung:	Diffusion constants of helium in gold, silver and aluminium are determined from thermal desorption experiments, giving: Au: D 0 = 10 −1.0 cm 2 /sec, ΔH = 1.70 eV Ag: D 0 = 10 −1.2 cm 2 /sec, ΔH = 1.50 eV Al: D 0 = 10 +0.1 cm 2 /sec, ΔH = 1.35 eV The results are compared to self-diffusion and to the diffusion of other light elements in metals. Possible diffusion mechanisms are discussed.
ISSN:	0033-7579 2331-3455
DOI:	10.1080/00337578308207362