On the structure of glass of the PbO-B2O3-SiO2 and CdO-SiO2-B2O3 systems

被引：8

作者：

Golubkov, V. V. ^{[1
]}

Onushchenko, P. A. ^{[1
]}

Stolyarova, V. L. ^{[2
]}

机构：

[1] Russian Acad Sci, Grebenshchikov Inst Chem Silicates, St Petersburg 199034, Russia

[2] St Petersburg State Univ, Petrodvorets 198504, Russia

来源：

GLASS PHYSICS AND CHEMISTRY | 2013年 / 39卷 / 06期

基金：

俄罗斯基础研究基金会;

关键词：

structure; short-range and middle-range ordering; scattering of X-rays at large angles; lead boron silicate and cadmium boron silicate glass; DIFFRACTION;

D O I：

10.1134/S1087659613060059

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：

Using the method of X-ray scattering at large angles, the structure of single-phase glass of the PbO-B2O3-SiO2 and CdO-B2O3-SiO2 systems has been studied. The glass of the two-component PbO-B2O3 and PbO-SiO2 systems of the three-component PbO-B2O3-SiO2 system, containing from 10 to 60 mol % of SiO2 at equal fractions of B2O3 and PbO, and the glass of a number of compositions of the CdO-B2O3-SiO2 system containing from 30 to 60% of CdO are investigated. A change in the prevailing interatomic spacings in the dependence on the glass composition is determined. The boron-oxygen network provides the orderliness in the distribution of ions-modifiers observed at distances on the order of 6 . It is found that in contrast to boron-oxygen network, the silicon-oxygen network does not have the ability to order the distribution of the ions-modifiers.

引用

页码：624 / 633

页数：10

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