Coulometric titration at low temperatures-nonstoichiometric silver selenide
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Abstract
A modified coulometric titration technique is described for the investigation of nonstoichiometric phases at low temperatures. It allows to obtain titration curves at temperatures where the conventional coulometric titration technique fails because of too small chemical diffusion coefficients of the mobile component. This method for indirect coulometric titration is applied to silver selenide between -100 and 100 °C. The titration curves are analyzed on the basis of a defect chemical model and provide thermodynamic data of the a-silver selenide phase. The boundaries of the homogeneous phase field are determined.Link to publications or other datasets
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Zuerst erschienen in: Solid State Ionics 170 (2004) 1/2, 129-133