Glass-Forming Region and Structure of Oxyhalide Tellurite Glasses Containing LiX (X=F and Br) and Li₂O

Abstract

The glass-forming regions in the ternary systems LiX (X=F and Br)-Li₂O-TeO₂ were established in the present study. For X=Br the glass-forming region was found to be widened up to about 75mol% LiBr on the LiBr rich side compared to the system containing LiCl which was studied previously, while the region for X=F was restricted to the Li₂O side, and no glass was formed in the binary LiF-TeO₂ system. These results were interpreted based on the glass structure which was mainly deduced from the IR measurement.