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首页> 外文期刊>Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites >Liquid-liquid phase separation in sodium borosilicate glass: Ordering phenomena in particle arrangement
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Liquid-liquid phase separation in sodium borosilicate glass: Ordering phenomena in particle arrangement

机译：硼硅酸钠玻璃中的液相-液相分离：颗粒排列中的有序现象

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摘要

A structure of 13.9Na(2)O center dot 36.0B(2)O(3) center dot 50.1SiO(2) glass heat-treated at 610 degrees C for 5 h (glass G1) and 10 h (glass G2) was studied by stereological method on the basis of electron microscopy data obtained from plane sections of samples. It has been found that liquid phase separation in the course of heat treatment leads to formation of spherical particles with the volume fractions 0.047 (G1) and 0.065 (G2). It is argued that the stage of growth takes place in the glass G1 and the Ostwald ripening stage occurs in the glass G2. The analyses of pair correlation functions of particle traces on a secant plane indicate elements of ordering in mutual arrangement of particles for the both glasses G1 and G2. This conclusion is confirmed by results of numerical simulation. The experimental data on the pair correlation functions are in agreement with the results of calculations presented in the literature. It is noted that the ordering elements in mutual arrangement of particles play a key role in light scattering and other physical properties of material. (C) 2007 Elsevier B.V. All rights reserved.
机译：1610Na（2）O中心点36.0B（2）O（3）中心点50.1SiO（2）玻璃的结构在610摄氏度下热处理5小时（玻璃G1）和10小时（玻璃G2）根据从样品平面部分获得的电子显微镜数据，通过立体方法进行了研究。已经发现，在热处理过程中的液相分离导致形成具有体积分数0.047（G1）和0.065（G2）的球形颗粒。据认为，生长阶段发生在玻璃G1中，而奥斯特瓦尔德熟化阶段发生在玻璃G2中。正割平面上的粒子迹线的成对相关函数分析表明，玻璃G1和G2的粒子相互排列的顺序元素。数值模拟结果证实了这一结论。对相关函数的实验数据与文献中给出的计算结果一致。应当指出，颗粒相互排列的有序元素在光散射和材料的其他物理特性中起着关键作用。 （C）2007 Elsevier B.V.保留所有权利。

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