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Conductivity Maximum in Sodium Aluminoborate Glass
Author(s) -
MARTIN STEVE W.,
ANGELL C. AUSTEN
Publication year - 1984
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.1151-2916.1984.tb19628.x
Subject(s) - conductivity , supercooling , crystallization , electrolyte , decoupling (probability) , sodium , materials science , analytical chemistry (journal) , electrical resistivity and conductivity , thermodynamics , mineralogy , chemistry , chromatography , metallurgy , physics , electrode , control engineering , quantum mechanics , engineering
By taking advantage of an exceptionally wide range of glass formation made possible by adding Al 2 O 3 to the Na 2 O‐B 2 O 3 binary system, the presence of a maximum in specific conductivity, not predicted by weak‐electrolyte models, was demonstrated at –55% Na 2 O. The decoupling of conducting modes from viscous modes in the supercooled liquid, assessed at T g , reaches a maximum at 45% Na 2 )O. A second regime of increasing conductivity at >60% Na 2 O seems to be associated with incipient compound crystallization.