No abstract

New glasses based on Sb 2 O 3 -PbO association have been synthesized and characterized. The limits for glass formation have been investigated in ternary systems encompassing trivalent oxides such as Al 2 O 3 , Ga 2 O 3 , and In 2 O 3 as the third component. Fast quenching is required to prevent melt crystallization, which results in thin samples. Chemical analysis shows a rather good agreement between nominal and analyzed compositions. Glass transition temperature, T g , ranges between 255 • C and 280 • C, depending on composition. Density and hardness have been measured for typical samples.