Density fluctuations in oxide glasses investigated by small-angle X-ray scattering

被引：17
|
作者：
Levelut, Claire [1 ]
Le Parc, Rozenn
Faivre, Annelise
Bruning, Ralf
Champagnon, Bernard
Martinez, Valerie
Simon, Jean-Paul
Bley, Francois
Hazemann, Jean-Louis
机构：
[1] Univ Montpellier 2, CNRS, UMR 5587, Lab Colloides Verres & Nanomat, F-34095 Montpellier, France
[2] Univ Lyon 1, F-69622 Villeurbanne, France
[3] Univ Lyon, F-69003 Lyon, France
[4] CNRS, UMR 5620, Lab Physicochim Mat Luminescents, F-69622 Villeurbanne, France
[5] Mt Allison Univ, Dept Phys, Sackville, NB E0A 3C0, Canada
[6] INP, UMR 5614, Lab Thermodynam & Physicochim Met, F-38402 St Martin Dheres, France
[7] Univ Grenoble 1, F-38402 St Martin Dheres, France
[8] Lab Cristallog Grenoble, UPR 5031, F-38042 Grenoble 9, France
来源：
JOURNAL OF APPLIED CRYSTALLOGRAPHY | 2007年 / 40卷
关键词：
D O I：
10.1107/S0021889807000507
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The structure of glasses is characterized by the existence of density and composition fluctuations on the nanometre scale. We present three examples of the use of small-angle X-ray scattering to get information about these density fluctuations. The thermal history and OH content were observed to have a huge influence. The static compressibility decreases when the OH content or fictive temperature increase. We showed that temperature scanning small-angle X-ray scattering can provide an accurate description of the position, width and shape of the glass transition.
引用
收藏
页码：S512 / S516
页数：5
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