Effect of Pb incorporation on the crystalline structure and crystallization kinetics of Ge1−xSe2Pbx system

New identification cards for the crystalline structure of the Ge1−xSe2Pbx system (x=0, 0.2 and 0.6) have been presented using CRYSFIRE computer program. X-ray powder diffraction technique was used to obtain the experimental patterns. Transformation of structure symmetry from monoclinic with x=0 and 0.2 to triclinic with x=0.6 has been detected. The corresponding lattice parameters, number of atoms per unit cell and the unit cell size have been calculated. Measurements of the hydrostatic density and Vicker micro-hardness have been carried out. Calculation of the variation of the number of constraints/atom and the average coordination number with x reveals a decrease of lattice cross-linking with the incorporation of lead. Study of the crystallization Kinetics using differential scanning calorimeter shows that the incorporation of Pb to the GeSe2 renders the crystallization process to be more difficult.