Study on glass transition temperature and kinetics of Cu–Zr glassy alloys

Abstract

Ideal glass transition temperatures and transition activation energies of Cu46Zr45Al9 metallic glass was investigated using differential scanning calorimetry (DSC). The Vogel–Fulcher–Tammann temperature T 0 and Kauzmann temperature T k were determined, respectively, and T 0 is greater than T k. Meanwhile, activation energies of glass transition E g, onset crystallization E x and crystallization peak E p were deduced to be 634.2 ± 15, 444 ± 16.1 and 366.8 ± 25.1 kJ mol−1, which indicates that glass transition is harder than crystallization process to proceed.