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Nernst‐Einstein Relation in Sodium Silicate Glass
Author(s) -
ENGEL JOHN R.,
TOMOZAWA MINORU
Publication year - 1975
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.1151-2916.1975.tb11438.x
Subject(s) - diffusion , electric field , nernst equation , einstein relation , ion , sodium , sodium silicate , analytical chemistry (journal) , chemistry , thermodynamics , silicate , materials science , mineralogy , physics , composite material , electrode , chromatography , metric (unit) , operations management , organic chemistry , quantum mechanics , economics
The diffusion coefficient and the electric mobility of sodium ( 22 Na) ions in a sodium silicate glass (25 mol% Na 2 O) were measured simultaneously at 300°C in an experiment of the type used by Chemla, where the diffusion heat treatment is made in a constant dc electric field. The diffusion coefficient remained unchanged with an applied electric field. The correlation factor in the Nernst‐Einstein relation calculated from the simultaneously measured diffusion coefficient and electric mobility was 0.5±0.05.