Preparation and characterization of superionic materials in a new mixed system (Cu(1-x)AgxI)-(Ag2O)-(P2O5), (0.05 <= x <= 0.25)

In this paper attempts have been made to prepare superionic glassy electrol ytes in the mixed system 30(Cu1-xAgxI)-46.66(Ag2O)-23.33(P2O5), where x = 0 .05, 0.1, 0.15, 0.2 and 0.25, respectively, using the melt quenching proces s. The solid samples were characterized by X-ray diffraction (XRD), differe ntial scanning calorimetry (DSC), Fourier transform infrared (FT-IR) spectr oscopy and silver ionic transport number studies. XRD analysis and FT-IR sp ectroscopic results have provided details regarding the various phases pres ent in the new system and also indicated the formation of composite materia ls consisting of glassy and crystalline phases. The transport number measur ements have indicated the formation of superionic solids having Ag+ ions as the mobile species in the present system. (C) 2000 Elsevier Science B.V. A ll rights reserved.