Viscosity of glasses near and below the glass transition temperature

摘要

The temperature dependence of the viscosity of metaphosphate glasses: (AgI)_x(AgPO_3)_1-x (x =0.0-0.5) with low melting points has been determined near and below the glass transition temperature T_g using a method developed by the authors. In this temperature region, the viscosity- temperature relation of the glasses shows double Arrhenius equations, which have different activation energies near and below Tg, respectively.