Lindemann-type criterion on the glass transition temperature of metallic glasses

Abstract Previous studies show that there are some similarities between glass transition and melt process for metals. We assume that the glass transition occurs when the amplitude of atomic vibrational motions exceeds a critical fraction of the atomic spacing, and find that the glass transition temperature of metallic glass is proportional to the product of its Young's modulus and molar volume. The finding indicates that the glass transition is associated with the vibrational motions of atoms, and a Lindemann-type criterion holds for the glass transition temperature of metallic glasses.