Abstract
A series of glasses based on the TeO2-ZnO-ZnCl2 system was prepared and their physical, thermal and optical propeties were investigated. This system provides a wide and stable glass formation range in which a Tc-Tg gap beyond 140°C can be achieved. An infrared cut-off edge up to 6.5 μm can be obtained, while the optical energy gap was found to be in the range of 2.0–2.5 eV. Most properties are observed to be dependent in a systematic manner on the ZnCl2 content.
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