Thermal Stability and Structure of Tellurite Glass

Abstract:

Oxyfluoride tellurite glass with the composition of TeO₂-AlF₃-LaF₃-ZnO/ZnCl₂/ZnF₂ was prepared successfully. The thermal stability and structure of TeO₂-AlF₃-LaF₃ system tellurite glass were studied by_{Subscript text} DSC and IR spectra. The results indicated that glass transition temperature of TeO₂-AlF₃-LaF₃-ZnO/ZnCl₂/ZnF₂ glass was higher than that of (1-x)TeO₂-xAlF₃ (x=10%, 20%, 30%, 40%, 50%, in mol%) binary glass system slightly. A small number of ZnF₂/ZnCl₂/ZnO (5mol%) improved glass thermal stability. After adding 5mol% ZnF₂/ZnO/ZnCl₂ into fluoride tellurite glass respectively, glass transition temperature increased in turn. The introduction of 5mol% different zinc compounds had a little impact on the glass network structure.

• Periodical: Key Engineering Materials (Volumes 512-515)
• Pages: 994-997
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.512-515.994
• Online since: June 2012
• Authors: Zhao Xia Hou, Zhao Lu Xue, Shao Hong Wang, Xiao Dan Hu, Hao Ran Lu, Chang Lei Niu, Hao Wang, Cai Wang, Yin Zhou
• Keywords: Glass Network Structure, Oxyfluoride Tellurite Glass, Thermal Stability

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