Abstract
Various transport properties, namely, the electrical conductivity, σ, ionic transference number,
t
ion, ionic mobility, μ, etc. were measured for the quenched [0.75AgI:0.25AgCl] system. The mobile ion concentration,
n, was calculated using σ and μ data. The results were compared with the values for AgI. The quenched [0.75AgI:0.25AgCl] system exhibited a β → α like transition in the log σ versus 1/
T plot at ∼ 135°C identical to AgI. The present investigations suggest that the quenched [0.75AgI:0.25AgCl] mixed system is a better choice as a host compound in place of AgI to prepare Ag
+ ion conducting superionic glasses and composites. Using the quenched [0.75AgI:0.25AgCl] system as host, the following superionic solid systems were prepared and studied: (A) (1)
x[0.75AgI:0.25AgCl] : (1 −
x)[Ag
2O · B
2O
3], (2)
x[0.75AgI : 0.25AgCl] : (1 −
x)[Ag
2O · B
2O
3], (by the mellt-quenched method (glass systems)); (B) (1) (1 −
x)[0.75AgI:0.25AgCl]:
x Al
2O
3 (by dispersing second-phase particles of size (< 10
μm) (composite system)). The results of the variation of the room temperature conductivity as a function of the molar weight ratio,
x, for the above systems are reported and compared with the results for similar systems using AgI as host.