Glass formation and properties in the gallia-calcia system
Glass formation and properties in the gallia-calcia system
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DOI：
10.1016/0022-3093(84)90371-5
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发表时间：
1984-08
影响因子：
3.5
通讯作者：
G. Whichard;D. Day
中科院分区：
文献类型：
--
作者：
G. Whichard;D. Day
测量了Ga2O3-CaO系统中五种成分的玻璃形成临界冷却速率，对于含37.5 mol. %的共晶熔体，该临界冷却速率为（315 ± 85）° C/s。对于含有52摩尔%的熔体，氧化镓含有37.5 - 62摩尔%的玻璃的选定性质测量了Ga2O3。密度和折射率nD均随Ga_2O_3含量的增加而增加，但晶化温度和显微硬度随Ga_2O_3含量的变化不大。这些玻璃的红外光谱表明，这两个GaO4四面体和GaO6八面体。
The critical cooling rate for glass formation was measured for five compositions in the Ga2O3−CaO system and varied from a low of (315 ± 85) °C/s for a eutectic melt containing 37.5 mol.% Ga2O3to a high of (840±60)°C/sec for a melt containing 52 mol.% Ga2O3. Selected properties of glasses containing from 37.5 to 62 mol.% Ga2O3were measured. The density and refractive index,nD, both increased with increasing Ga2O3content, but the crysallization temperature and microhardness varied only slightly with Ga2O3content. The IR spectra of these glasses suggest that both GaO4tetrahedra and GaO6octahedra are present.