An infrared study of crystallization in sodium-disilicate glasses containing iron oxides
An infrared study of crystallization in sodium-disilicate glasses containing iron oxides
复制标题
含氧化铁的二硅酸钠玻璃结晶的红外研究
DOI：
10.1016/0022-3093(80)90126-x
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发表时间：
1980
期刊：
影响因子：
--
通讯作者：
Haydn Chen
中科院分区：
文献类型：
--
作者：
J. Park;Haydn Chen
在200-2000 cm-1的波数范围内，研究了含有不同量Fe 2 O3（[Na 2 O· 2 SiO2]1-x[Fe 2 O3]x，其中x = 0.05、0.1和0.2）的二硅酸钠玻璃的红外吸收光谱。与纯二硅酸钠玻璃的光谱相比，向二硅酸钠玻璃中添加Fe 2 O3似乎不会引入任何新的吸收带;然而，观察到现有吸收带总体上向较低波数移动。事实上，位移量与玻璃中的Fe 2 O3含量成正比。这一观察结果与最近提出的铁-钠-硅酸盐玻璃体系中Fe 3+离子键合的结构模型相一致。20 mol%氧化铁玻璃在550和580°C退火时，在约610 cm− 1波数处产生了一个额外尖锐的红外吸收峰。从扫描电子显微照片和电子衍射图中可以推断，该新峰与玻璃的结晶颗粒有关。
The infrared absorption spectra of sodium-disilicate glasses containing various amounts of Fe2O3([Na2O · 2 SiO2]1−x[Fe2O3]x, wherex= 0.05, 0.1 and 0.2) were investigated in the wavenumber range from 200–2000 cm−1. The addition of Fe2O3to the sodium-disilicate glass does not seem to introduce any new absorption band as compared with the spectrum of a pure sodium-disilicate glass; nevertheless, a general shift of the existing absorption bands toward lower wavenumbers is observed. The amount of shift is, in fact, proportional to the content of Fe2O3in the glass. This observation is consistent with the recently proposed structural model for the bonding of Fe3+ions in the iron-sodium-silicate glass system.Annealing of 20 mol% iron oxide glasses at 550 and 580°C produced an extra sharp infrared absorption peak at about 610 cm−1wavenumber. This new peak is believed to be related to the crystallized particles of the glass as concluded from both a scanning electron micrograph and an electron diffraction pattern.