Structure model and properties of alkali borate melts

被引：6
|
作者：
Zhang, Z. [1 ]
Reddy, R. G. [1 ]
机构：
[1] Univ Alabama, Dept Met & Mat Engn, Tuscaloosa, AL 35487 USA
来源：
TRANSACTIONS OF THE INSTITUTIONS OF MINING AND METALLURGY SECTION C-MINERAL PROCESSING AND EXTRACTIVE METALLURGY | 2005年 / 114卷 / 03期
关键词：
Alkali borate melts; structural model; activities; structural groups; viscosity;
D O I：
10.1179/037195505X63394
中图分类号：
TD [矿业工程];
学科分类号：
0819 ;
摘要：
Experimental and thermodynamic modelling studies on the structure of alkali borate melts and properties are discussed. A thermodynamic structure model for alkali borate melts is developed to describe the distribution of structural groups in the alkali borate melts as a function of composition. A qualitative interpretation for the boron anomaly in viscosity has been proposed, which regards the boron anomaly as a manifestation of the various antithetical effects caused by the introduction of alkali oxide into boric oxide. It has been found that the viscosity of alkali borate melts increases or decreases according to the changes in rigidity and spatial connectivity of the glass network structure, which is the function of temperature and composition. These concepts with some key examples are discussed in relation to their usefulness and practicality in industrial slags.
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收藏
页码：192 / 199
页数：8
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