Phase relationship and electrical conductivity of Li1+xTi2−xGaxP3O12 and Li1+2xTi2−xMgxP3O12 systems
Abstract Phase relationship and electrical conductivity of Li 1+x Ti 2−x Ga x P 3 O 12 and Li 1+2x Ti 2−x Mg x P 3 O 12 systems were investigated. Solid solutions can be formed to some extent in both systems. The conductivities increase with increasing substituting content of Ga 3+ and Mg 2+ and reach a maximum at x =0.6 and x =0.3 with values equal to 8.4×10 −3 and 5.3×10 −3 S/cm at around 300°C respectively. The effect of substitution of Ti 4+ by Ga 3+ , Mg 2+ and In 3+ are compared and discussed in view of crystal chemistry.