Proton magnetic resonance in sodium borosilicate glasses

被引：0
|
作者：
Pletnev, RN [1 ]
Denisova, TA [1 ]
Zhuravlev, NA [1 ]
Loshchagin, AV [1 ]
Pletnev, AR [1 ]
机构：
[1] Russian Acad Sci, Inst Solid State Chem, Ural Div, Yekaterinburg 620219, Russia
来源：
GLASS PHYSICS AND CHEMISTRY | 1999年 / 25卷 / 04期
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D O I：
暂无
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：
The state of water in the xNa(2)O . B2O3. 2SiO(2). nH(2)O (x = 5-8) glasses is investigated. The compositions of oxygen-hydrogen groupings are determined by the H-1 NMR spectroscopy. It is demonstrated that the incorporation of the OH- groups and H2O molecules into the glass structure is one of the reasons for the BO4 --> BO3 transition and causes an increase in the degree of isolation of threefold-coordinated boron. The geometric parameters of hydrogen bonds [the lengths of the hydrogen bridges O(H2O)... O] and H2O molecules are obtained.
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页码：342 / 344
页数：3
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