Glass forming region and structure of vitreous RS-Ga2S3 (R = Ca, Sr, Ba)
Glass forming region and structure of vitreous RS-Ga2S3 (R = Ca, Sr, Ba)
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DOI：
10.2109/jcersj.111.308
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发表时间：
2003-05-01
影响因子：
1.1
通讯作者：
Morinaga, K
中科院分区：
文献类型：
--
作者：
Ishibashi, T;Takebe, H;Morinaga, K
在RS-Ga_2S_3（R = Ca，Sr，Ba）系统中制备了镓硫玻璃。相应的玻璃形成区域为67.5-70.0摩尔%的CaS、63.8-68.8摩尔%的SrS和60.0-73.8摩尔%的BaS。在可见光区的透射光谱，折射率和玻璃化转变和开始结晶温度进行了测量的SrS和BaS-Ga 2 S 3透明玻璃的代表性组合物。拉曼光谱表明，由于RS的加入，RS-Ga_2S_3玻璃由GeS_4四面体网络组成。摩尔体积的组成依赖性表明在65-70摩尔% RS在SrS和BaS-Ga 2 S3玻璃的平台区。以硫镓比为变量，讨论了RS-Ga_2S_3玻璃熔体中硫络阴离子的形态。综合的结果表明，良好的发展的玻璃网络附近形成66.7摩尔% RS（S/Ga = 2.5）的SrS-和BaS-Ga 2 S3系统。
Gallium sulfide glasses were prepared in the RS-Ga2S3 (R = Ca, Sr, Ba) systems. Respective glass forming regions are 67.5-70.0 mol% CaS, 63.8-68.8 mol% SrS and 60.0-73.8 mol% BaS. Transmission spectra in the visible region, refractive index and glass transition and onset crystallization temperatures were measured for representative compositions of SrS- and BaS-Ga2S3 transparent glasses. Raman spectroscopy reveals that RS-Ga2S3 glasses consist of the network of GeS4 tetrahedra due to the RS addition. The compositional dependence of molar volume indicates a plateau region at 65-70 mol% RS in SrS- and BaS-Ga2S3 glasses. The morphology of sulfur complex anions in RS-Ga2S3 glass melts is discussed using the sulfur-to-gallium ratio as a variable parameter. The combined results suggest that well-developed glass networks are formed near 66.7 mol% RS (S/Ga = 2.5) in the SrS- and BaS-Ga2S3 systems.