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Electrical Resistivity Surface for FeO‐Fe 2 O 3 ‐P 2 O 5 Glasses
Author(s) -
VAUGHAN JAMES G.,
KINSER DONALD L.
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.tb11489.x
Subject(s) - electrical resistivity and conductivity , analytical chemistry (journal) , microstructure , mineralogy , materials science , chemistry , metallurgy , physics , quantum mechanics , chromatography
The dc electrical properties and microstructure of x (FeO‐Fe 2 O 3 )‐(100 – x )P 2 O 5 glasses were investigated up to a maximum of x = 75 mol%. Results indicate that, in general, the minimum resistivity of the glass does not occur at equal Fe 2+] and Fe 3+] concentrations, although for the special case where x = 55 mol% the minimum does occur at Fe 2+] /Fe total = 0.5, as reported by other investigators. Evidence presented shows that the position of the minimum resistivity is a function of total iron content. The minimum shifts to glasses richer in Fe 2+] at higher total iron concentrations.