Ag +, Cu + and Na + diffusion were determined in AgI-Ag oxysalt high conductivity glasses 4AgI:Ag 2 WO 4, 3AgI:Ag 2MoO 4 and 4AgI:Ag 2O.B 2O 3. The first and the third were investigated at various temperatures whereas for the second glass, due to its thermal instability, only room temperature data could be obtained. Similar diffusion coefficient values were found for Ag and Cu throughout the temperature range investigated for each kind of glass. Significant differences between D Ag and D Na were interpreted on the ground of the short range structure proposed some years ago for these materials. The room temperature Haven ratios seem suggestive of a cooperative transport mechanism
Fast ionic diffusion in AgI-Ag oxysalt glasses / A. Schiraldi, E. Pezzati. - In: SOLID STATE IONICS. - ISSN 0167-2738. - 5:C(1981 Oct), pp. 675-678. ((Intervento presentato al convegno International Conference on Fast Ionic Transport in Solids tenutosi a Gatlinburg, TN, USA nel 1981.
Fast ionic diffusion in AgI-Ag oxysalt glasses
A. SchiraldiPrimo
;
1981
Abstract
Ag +, Cu + and Na + diffusion were determined in AgI-Ag oxysalt high conductivity glasses 4AgI:Ag 2 WO 4, 3AgI:Ag 2MoO 4 and 4AgI:Ag 2O.B 2O 3. The first and the third were investigated at various temperatures whereas for the second glass, due to its thermal instability, only room temperature data could be obtained. Similar diffusion coefficient values were found for Ag and Cu throughout the temperature range investigated for each kind of glass. Significant differences between D Ag and D Na were interpreted on the ground of the short range structure proposed some years ago for these materials. The room temperature Haven ratios seem suggestive of a cooperative transport mechanism
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