Deuterium permeation and diffusion in high-purity beryllium

E. Abramov, M. P. Riehm, D. A. Thompson, W. W. Smeltzer

Research output: Contribution to journalArticlepeer-review

85 Scopus citations

Abstract

The permeation rate of deuterium through high-purity beryllium membranes was measured using the gas-driven permeation technique. The time-dependent and the steady-state deuterium flux data were analyzed and the effective diffusivities of the samples were determined. Using multilayer permeation theory the effects of surface oxide were eliminated and the diffusion coefficients of the bulk beryllium determined. The diffusion parameters obtained for the extra-grade beryllium samples (99.8%) are D0 = 6.7 × 10-9 m2/s and ED = 28.4 kJ/mol. For the high-grade beryllium samples (99%) the parameters are D0 = 8.0 × 10-9 m2/s and ED = 35.1 kJ/mol.

Original languageEnglish
Pages (from-to)90-95
Number of pages6
JournalJournal of Nuclear Materials
Volume175
Issue number1-2
DOIs
StatePublished - 1 Dec 1990
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • General Materials Science
  • Nuclear Energy and Engineering

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