Properties of lithium aluminoborate glasses

IF 0.3 4区 材料科学 Q4 CHEMISTRY, PHYSICAL
Kathleen A. Siuzdak Weber, J. Shelby
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引用次数: 0

Abstract

The density, refractive index, thermal expansion coefficient, glass transformation temperature and d.c. conductivity have been determined for a number of lithium aluminoborate glasses. The glasses studied lie on lines of constant Al2O3 to Li2O concentration with values of 0 (binary lithium borate glasses), 1/2 and 1/1. The thermal expansion coefficient passes through a minimum for all three series of glasses, while the glass transformation temperature for each series passes through a maximum. This behaviour is characteristic of the borate anomaly for all three series of glasses. Replacement of B2O3 by Al2O3 in these glasses has only a slight effect on the density and refractive index. The d.c. electrical conductivity of these glasses is controlled by the Li2O concentration, with little change due to replacement of B2O3 by Al2O3.
铝酸锂玻璃的性能
测定了几种铝酸锂玻璃的密度、折射率、热膨胀系数、玻璃化温度和直流电导率。所研究的玻璃位于Al2O3 - Li2O恒定浓度线上,值分别为0(二元硼酸锂玻璃)、1/2和1/1。三个系列玻璃的热膨胀系数都经过一个最小值,而每个系列的玻璃转变温度都经过一个最大值。这种行为是所有三个系列玻璃的硼酸盐异常的特征。在这些玻璃中,用Al2O3取代B2O3对密度和折射率只有轻微的影响。这些玻璃的直流电导电性受Li2O浓度的控制,由于Al2O3取代B2O3而变化不大。
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来源期刊
CiteScore
0.70
自引率
33.30%
发文量
0
审稿时长
1 months
期刊介绍: Physics and Chemistry of Glasses accepts papers of a more purely scientific interest concerned with glasses and their structure or properties. Thus the subject of a paper will normally determine the journal in which it will be published.
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