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

页码：S512 / S516

页数：5

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