Na2ZnSiO4 was synthesized by hydrothermal synthesis method at moderate
temperature and pressure, Its thermal stability and ionic conductivit
y were investigated. The experimental results show that the compositio
ns of starting materials have much influence on the crystallization of
the products. Na2ZnSiO4 is a moderate ionic conducter with activation
energy of 66.5 kJ/mol and ionic conductivity of 5 x 10(-2) S/cm at 39
0 degrees C.