Light scattering by sodium germanate glass after temperature jumps in the glass transition range

被引:0
|
作者
Bokov, NA [1 ]
Andreev, NS [1 ]
机构
[1] Russian Acad Sci, IV Grebenshchikov Silicate Chem Inst, St Petersburg 199155, Russia
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中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
The time dependences of polarized and depolarized components of the integrated light scattering intensity for sodium germanate glass containing 12.5 mol % sodium oxide are experimentally obtained after temperature jumps in the glass transition range. It is revealed that the light scattering intensity remains virtually unchanged during the low-temperature stabilization preceding a temperature jump. It is found that, after the temperature jump to a larger value, the time dependence of the scattering intensity exhibits a peak. The intensity at a peak and its location on the time scale depend on the duration of preceding low-temperature stabilization. The observed effect is predominantly determined by the behavior of the isotropic component of scattered radiation.
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页码:125 / 129
页数:5
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