Glass formation and conductivity in the Ag sub 2 AgPO sub 3 system: Evidence against cluster pathway mechanisms for high ionic conductivity
- Univ. of Bordeaux, Talence (France)
The glassforming region in the system Ag{sub 2}S-AgPO{sub 3} has been determined and studies of electrical conductivity, infrared absorption, thermal expansion and transport number of Ag{sup +} ions have been made. The results of the electrical conductivity and the transport number measurements show that the conduction is essentially ionic in nature and due to silver ions alone. In this system, as in AgI-AgPO{sub 3}, the logarithm of the ionic conductivity increases linearly with increasing Ag{sub 2}S mole fraction and extrapolates to the value of the superionic crystalline Ag{sub 2}S. However, an explanation similar to the {alpha}-AgI cluster pathway model proposed for AgI-containing systems is not tenable since IR spectra show that Ag{sub 2}S dissolves by an acid-base chemical ordering process to give shorter phosphate chain structures which approach the pyrophosphate stoichiometry at the glassforming limit.
- DOE Contract Number:
- FG02-84ER45102
- OSTI ID:
- 7110205
- Journal Information:
- Solid State Ionics; (Netherlands), Journal Name: Solid State Ionics; (Netherlands) Vol. 34; ISSN SSIOD; ISSN 0167-2738
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
360602 -- Other Materials-- Structure & Phase Studies
360606* -- Other Materials-- Physical Properties-- (1992-)
ABSORPTION SPECTROSCOPY
CHALCOGENIDES
DATA
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
EXPERIMENTAL DATA
INFORMATION
INFRARED SPECTRA
IONIC CONDUCTIVITY
METALLIC GLASSES
NUMERICAL DATA
OXYGEN COMPOUNDS
PHASE STUDIES
PHOSPHATES
PHOSPHORUS COMPOUNDS
PHYSICAL PROPERTIES
PYROPHOSPHATES
QUANTITY RATIO
SILVER COMPOUNDS
SILVER PHOSPHATES
SILVER SULFIDES
SPECTRA
SPECTROSCOPY
SULFIDES
SULFUR COMPOUNDS
TRANSITION ELEMENT COMPOUNDS