Network Structure and Chemical Durability of Non-alkali Aluminoborosilicate Glasses Containing ZnO

被引：0

作者：

杜睿 ^{[1
]}

HAN Jianjun ^{[1
]}

CAO Xin ^{[2
]}

LIU Chao ^{[1
]}

王静 ^{[1
]}

机构：

[1] State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology

[2] State Key Laboratory of Advanced Technology for Float Glass, (CNBM) Bengbu Design & Research Institute for Glass Industry Co.Ltd.

来源：

Journal of Wuhan University of Technology(Materials Science) | 2020年 / 35卷 / 02期

基金：

中国国家自然科学基金;

关键词：

HF-acid corrosion; NaOH-resistance; network connectivity; Zn/Mg effect;

D O I：

暂无

中图分类号：

TQ171.1 [基础理论];

学科分类号：

0805 ; 080502 ;

摘要：

The structure and chemical durability of non-alkali aluminoborosilicate glasses with various contents of ZnO were investigated.As the replacement of MgO by ZnO increases from 0 to 3.2mol%,the average number of bridge oxygen per tetrahedron (BO/T) as a measure of network connectivity increases from 2.84 to 3.04,and the chemical durability improved.The weight loss ratio (WLR) of glass etched in 10vol% HF (20 ℃,20 min) solution decreased from 4.809 to 4.509,and in 5wt% NaOH (95 ℃,6 h) solution decreased from 1.201 to 0.994.The replacement of MgO by ZnO further increased to 6.4mol%,the value of BO/T decreased to 3.04 instead,and thus the chemical durability deteriorated.The WLR of HF-acid and NaOH-alkali corrosion increased to 6.683 and 1.994,respectively.The chemical durability shows strongly dependent on the network connectivity and exhibits mixed intermediate effects during the replacement of MgO by ZnO.

引用

页码：377 / 383

页数：7

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