Abstract
The crystallization kinetics of binary V(2)O(5)/B(2)O(3) glass was studied under non-isothermal conditions using the formal theory of transformations for heterogeneous nucleation. The procedure was applied to the experimental data obtained by differential scanning calorimetry (DSC), using continuous heating techniques. In addition, from the heating rate dependence of the glass transition temperature, the glass transition activation energy was derived. The crystallization results were analysed, and the activation energy of the crystallization process and of the crystallization mechanism were characterized. The phases during which the glass crystallizes after the thermal process have been identified by x-ray diffraction. The diffractogram of the transformed material indicates the presence of microcrystallites of two main phases from V(5)O(9) and VBO(3) and small traces from V(14)O(6) and V(2)O(3) in an amorphous matrix.