Structure of borosilicate glasses and melts: A revision of the Yun, Bray and Dell model

被引：106

作者：

Manara, D. ^{[1
]}

Grandjean, A. ^{[1
]}

Neuville, D. R. ^{[2
]}

机构：

[1] Serv Confinement Dechets & Vitrificat, CEA VALRHO, F-30207 Bagnols Sur Ceze, France

[2] CNRS, Inst Phys Globe, UMR 7047, F-75252 Paris 05, France

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 2009年 / 355卷 / 50-51期

关键词：

Raman spectroscopy; Oxide glasses; Borosilicates; Structure; Medium-range order; NUCLEAR-MAGNETIC-RESONANCE; RAMAN-SPECTROSCOPY; B-11; NMR; SYSTEM NA2O-B2O3-SIO2; SILICATE-GLASSES; HIGH-TEMPERATURE; BORATE GLASSES; DIFFRACTION; SI-29;

D O I：

10.1016/j.jnoncrysol.2009.08.033

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：

Within the framework of structural studies of borosilicate glasses, a revision of the Yun, Bray and Dell (YBD) model is proposed here. The YBD model is slightly modified in order to take into account more recent experimental results, and in particular the formation of Na2O center dot B2O3 center dot 2SiO(2) danburite-like units in borosilicate glasses. The following more general formula is proposed for R*, the threshold value of R (R = [Na2O]/[B2O3]), beyond which glass depolymerisation begins upon addition of modifier to the glass: R* = 0.5 + K/2N where N is the average number of SiO2 units included in the borosilicate groups (reedmergnerite and danburite-like), and K = [SiO2]/[B2O3]. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：2528 / 2531

页数：4

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