Thermal Stability Of Ti20Zr20Cu10Ni50 Metallic Glass

We report a study of kinetics of crystallization of Ti₂₀Zr₂₀Cu₁₀Ni₅₀ metallic glass ribbon by Differential Scanning Calorimetry (DSC) under non-isothermal condition. The sample was prepared by the standard melt spinning technique, that is, rapid cooling of the melt of the compound on a rotating copper wheel. As prepared sample was confirmed to be amorphous as determined by the Xray diffraction. DSC results show single exothermic peak in the DSC thermograms for four heating rates used to study crystallization of the sample. Activation energy of the crystallization of the sample is evaluated using Kissinger, Augis-Bennett and Ozawa models.