Mechanical, thermal and physical properties of new chloroantimonite glasses in the Sb2O3 -PbCl 2 -AgCl system

International audienceNew chloroantimonite glasses have been obtained in the Sb 2 O 3-PbCl 2-AgCl ternary system. Thermal, optical and mechanical properties have been studied. The silver chloride concentration was increased at the expense of antimony oxide according to the following composition rules: (80-x)Sb 2 O 3-20PbCl 2-xAgCl ; (70-x)Sb 2 O 3-30PbCl 2-xAgCl. Depending on AgCl content, Vickers micro-hardness varies between 110 and 140 MPa. Elastic moduli have been measured by ultrasonic velocity. Optical transmission range extends from 400 nm in the visible spectrum to 7 µm in the infrared. Refractive index is close to 2. Glass transition temperature measured by DSC ranges from 250 °C to 290 °C. The influence of silver and lead chloride on physical properties was discussed