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Infrared Spectra of Superionic Conducting Glasses in the System AgI‐Ag 2 O‐GeO 2
Author(s) -
MINAMI TSUTOMU,
IMAZAWA KAZUHIRO,
TANAKA MASAMI
Publication year - 1980
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.1151-2916.1980.tb09849.x
Subject(s) - octahedron , tetragonal crystal system , infrared spectroscopy , infrared , mineralogy , materials science , tetrahedron , hexagonal crystal system , spectral line , crystallography , analytical chemistry (journal) , chemistry , crystal structure , physics , optics , organic chemistry , chromatography , astronomy
Infrared spectra of superionic conducting glasses in the system AgI‐Ag 2 O‐GeO 2 were compared with crystalline (hexagonal and tetragonal forms) and glassy GeO 2 . It was found that glasses with the mole ratio Ag 2 O/GeO 2 = l are almost entirely composed of octahedral GeO 6 groups. As the ratio deviates from unity, the content (which is probably low) of the tetrahedral GeO 4 groups increases. The composition dependence of glass transition temperatures is explained on the basis of this structural evidence.