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Sodium Diffusion in High‐Silica Glass
Author(s) -
LIM CHUNG,
DAY DELBERT E.
Publication year - 1978
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.1151-2916.1978.tb09321.x
Subject(s) - diffusion , uncorrelated , silica glass , isotope , materials science , analytical chemistry (journal) , sodium , conductivity , electrical resistivity and conductivity , mineralogy , chemistry , thermodynamics , composite material , metallurgy , physics , chromatography , statistics , mathematics , quantum mechanics
Isotope effect and electrical conductivity measurements were used to investigate the mechanism of Na + diffusion in high‐SiO 2 glass. A Haven ratio near unity and comparatively high isotope effect values suggest a quasi‐interstitial mechanism for Na + diffusion. At low Na + concentration the Na + −Na + separation distance is so large that the Na + jumps become uncorrelated.