Experimental study of the thermal expansion of (AgI)(0.67)(Ag2MoO4)(0.33) ionic glass from 5 K to 300 K

The thermal expansion of the ionically conducting silver iodide-silver molybdate glass (AgI)(0.67)(Ag2MoO4)(0.33) was investigated from low temperatures up to about the glass transition region using a capacitance dilatometer via a quasi-adiabatic method. The results do not show any anomalous behaviour in a temperature range where the existence of relaxation processes with peculiar features was previously revealed using mechanical spectroscopy, but rather a monotonic increase of positive values of the thermal expansion coefficient.