The Chalcogenide glasses were fabricated by melting and quenching techniques in the Se-Ge system in the presence of 1%. mol of Ga and 3, 5 and 7 %. mol of Sn. Differential scanning calorimetry (DSC) analysis was conducted to extract the glass transition temperature of the samples. Fourier Transform Infrared (FTIR) spectroscopy analysis was also performed in range of 400-4000 cm-1. The Glass samples were heated at 450 °C for 1-10 h. The precipitated nanoparticles were observed using a Field Emission Scanning Electron Microscope (FESEM). The size of crystals were in the range of 100-1000 nm. The precipitated phases were identified using X-ray Diffraction (XRD) analysis on glass-ceramics powder. The hardness of the glass-ceramics has been increased from 200 to 250 Kg/mm2.
