Glass forming region in the GeSe2–GeTe–PbTe system and some physicochemical properties of glassy alloys

Abstract New chalcogenide glasses from the GeSe 2 –GeTe–PbTe system were synthesized. The glass forming region was determined using visual, X-ray diffraction and scanning electron microscopy analyses. It is extended towards the GeSe 2 and lies partially on the GeSe 2 –GeTe (0–58 mol% GeTe) and GeSe 2 –PbTe (20.0–57.5 mol% PbTe) sides. No glasses were obtained in the GeTe–PbTe system. The investigated physicochemical properties vary between 4.04–6.21 g/cm 3 (density, d); 97–121 kgf/mm 2 (microhardness, HV); −0.187 ÷ 0.007 (compactness, C) and 14.3–17.8 GPa (elasticity modulus, E), respectively.