Investigation on Stable Criterion for Glass

On the basis of previous investigation on stable criterion for glass, the authers put forwarda new stable criterion of AD(T) = V' exp(-E/RT· D) [D = Tc(Tp-Tc)/T1(T1-Tg)], whichhas included the kinetic factor and the thermodynamic factor by means of bringing correctionfactor D into the stable criterion k(T). The low value of kD(T) means good stability of the glass.The new criterion kD(T) has little connection with heating rate and can be well used in differentcharacteristic temperature. When values of frequency factor v of glass are near , the criterionespecially can decide the stability of the glass and shows more superiority than the criterion ofk(T) or ky(T), which cannot give a correct judgment about the stability of glass. The correctnessof the new criterion of kD(T) was verified by experiments.