Thermal annealing and density fluctuations in silica glass

被引：33

作者：

Le Parc, R

Champagnon, B

Guenot, P

Dubois, S

机构：

[1] Univ Lyon 1, CNRS, UMR 5620, Lab Physicochim Mat Luminescents, F-69622 Villeurbanne, France

[2] Alcatel, R&D Fibres Opt, F-78700 Conflans St Honorine, France

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 2001年 / 293卷

关键词：

D O I：

10.1016/S0022-3093(01)00835-3

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：

Silica glasses of a same composition with different annealing times above and below T-g are characterized by infra-red and Raman spectroscopy in order to determine their fictive temperature. The Rayleigh scattering of these different samples is shown to decrease when the fictive temperature decreases in agreement with a decrease of density fluctuations. Some quantitative discrepancies are however shown to occur for long annealing at 950 degreesC. (C) 2001 Elsevier Science B.V. All rights reserved.

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页码：366 / 369

页数：4

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