S Austin Suthanthiraraj
Articles written in Bulletin of Materials Science
Volume 36 Issue 7 December 2013 pp 1297-1306
This paper deals with preparation and physico-chemical characterization of a new mixed system, (SbI3)𝑥–(Ag2CrO4)1−𝑥 (0.1 ≤ 𝑥 ≤ 0.9), undertaken with a view to evaluate silver ion transport properties and identify those fast ion conducting compositions. Polycrystalline samples of various compositions were synthesized by rapid melt-quenching method. Powder X-ray diffraction (XRD) analysis in conjunction with differential scanning calorimetry (DSC) and electrical transport evaluation involving silver ionic transport number and temperaturedependent electrical complex impedance measurements were carried out in order to identify the different phases responsible for the conduction mechanism. Realization of a fast ionic conductivity value of 3.2 × 10-2 S cm-1 in the case of the composition, (SbI3)0.3–(Ag2CrO4)0.7, at room temperature due to silver ion transport has been discussed in terms of observed structural and thermal characteristics. A detailed analysis of conductivity spectra pertaining to the best conducting system, (SbI3)0.3–(Ag2CrO4)0.7, has also been presented.
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