Structural relaxation of the frozen-in density fluctuations in silica glass

被引：0
|
作者：
Saito, K
Ikushima, AJ
机构：
来源：
PROGRESS OF THEORETICAL PHYSICS SUPPLEMENT | 1997年 / 126期
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中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Density fluctuations in silica glasses with different OH-concentrations were investigated by measuring the light scattering intensity over a wide temperature range from 300 K to 1900 K. It was found that in OH-free silica glass the diffusive density fluctuations are completely ''frozen-in'' at the glass transition temperature, while in OH-containing glass OH gives rise to the structural relaxation of this ''frozen-in'' density fluctuations over 400 K below T-g.
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页码：277 / 280
页数：4
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