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Helium Diffusion and Solubility in K 2 O‐SiO 2 Glasses
Author(s) -
SHELBY J. E.
Publication year - 1974
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1974.tb10883.x
Subject(s) - solubility , helium , diffusion , substructure , materials science , phase (matter) , volume (thermodynamics) , permeation , thermodynamics , chemistry , physics , organic chemistry , biochemistry , structural engineering , membrane , engineering
Helium permeation, diffusion, and solubility were measured for K 2 O‐SiO 2 glasses containing 0 to 32 mol% K 2 O. All 3 parameters decrease continuously with increasing K concentration. Comparison of these results with those reported previously for Na 2 O‐SiO 2 glasses confirm the contention that helium migration in glass is affected by changes in substructure as well as in atomistic structure. Helium mobility and solubility in single‐phase glasses appear to be controlled by the accessible free volume of the glass network.