Glass forming tendency and thermal properties of chalcogenide glass Ge-Se-Te-Sn
Glass forming tendency and thermal properties of chalcogenide glass Ge-Se-Te-Sn
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发表时间：
1999
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通讯作者：
Xian‐Juan Feng;Hefang Hu;F. Lin;Quanqing Chen;Zhiyu Wang
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作者：
Xian‐Juan Feng;Hefang Hu;F. Lin;Quanqing Chen;Zhiyu Wang
制备了Ge-Se-Te-Sn体系的硫系玻璃。首先观察了该第四系的玻璃化形成趋势。基于差热分析数据，研究了Ge-Se-Te-Sn玻璃的热性能。三分之二法则，T g /T l =2/3，适用于Ge-Se-Te-Sn玻璃，其中T g和T l分别是玻璃化转变温度和液相温度。根据杂原子单键能，计算了Ge-Se- Te-Sn玻璃中各种化学键的相对概率，发现玻璃网络结构的强度主要受玻璃中Ge-Se和Sn-Se之间最强键的影响。
Chalcogenide glasses of the system Ge-Se-Te-Sn have been prepared. Firstly the glass forming tendency in this quaternary system has been observed. Based on DTA data, the thermal properties of Ge-Se-Te-Sn glasses have also been studied. The two thirds rule, T g /T l =2/3, holds well for the Ge-Se-Te-Sn glasses, where T g and T l are the glass transition and liquidus temperatures, respectively. According to the heteroatom single bond energies, the relative probabilities of various chemical bonds in Ge-Se- Te-Sn glasses have been calculated and it is found that the strength of the glass network structure is mainly influenced by the strongest bonds between Ge-Se and Sn-Se in the glasses.