Kinetic analysis of crystallization process of Se-In-Pb glasses—Isoconversion method

The crystallization process of Se95−xInxPb5 (x = 2, 4, 6, 8 and 10 at.%) glassy system was studied by differential thermal analysis (DTA) technique under non-isothermal conditions. The crystallization parameters were calculated using different kinetic models. The glass forming ability was found to decrease with increasing In content. The validity of the Johnson–Mehl–Avrami (JMA) model to describe the crystallization process for the studied compositions was discussed. The results showed that the two-parameter Sestak–Berggren model SB (M, N) is the most suitable for quantitative description of the crystallization process for the studied compositions. Increasing In content in the Se-In-Pb system leads to a more complex and accelerated process. The crystalline phases formed in the annealed samples were identified using X-ray diffraction technique (XRD) and scanning electron microscopy (SEM).