Nasicon-type compounds and solid solutions, where M was Li or Na, were investigated by using X-ray powder diffraction and ionic conductivity methods. The variation in ionic conductivity as a function of x was regular (table 165).
J.M.Winand, A.Rulmont, P.Tarte: Journal of Solid State Chemistry, 1991, 93[2], 341-9
Table 165
Ionic Conductivity of Hf2M(PO4)3-Type Solid Solutions
Material | Temperature (K) | (S/cm) |
Hf2Na(PO4)3 | 600 | 4.9 x 10-5 |
Hf2Na(PO4)3 | 400 | 5.1 x 10-7 |
Hf2Li(PO4)3 | 600 | 3.9 x 10-4 |
Hf2Li(PO4)3 | 400 | 1.5 x 10-5 |