Homogeneous and Heterogeneous Crystal Nucleation in Glass of the Li2O-SiO2 System

被引：4

作者：

Sycheva, G. A. ^{[1
]}

机构：

[1] Russian Acad Sci, Grebenshchikov Inst Silicate Chem, St Petersburg 199034, Russia

来源：

GLASS PHYSICS AND CHEMISTRY | 2018年 / 44卷 / 03期

关键词：

Li2O-SiO2; glass; spontaneous nucleation; critical nucleus size; surface energy of critical nucleus; difference between the Gibbs free energies of glass and a crystal; catalyzed bulk nucleation; effect of bubbles; effect of water on the kinetics of crystal nucleation; effect of poorly soluble impurities on crystal nucleation in glass; GERM-FORMATION; LITHIUM; NUCLEUS; NA;

D O I：

10.1134/S1087659618030161

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 results of studying the kinetics of homogeneous (spontaneous) and heterogeneous (catalyzed) crystal nucleation in silicate glass is presented for glasses in the Li2O-SiO2 system. Nucleation is catalyzed via the photosensitive mechanism by adding poorly soluble impurities, shifting the glass composition towards the higher content of one of the components (autocatalysis), and by passing steam through the glass melt. The fundamental characteristics of crystal nucleation are obtained. The composition ranges with the maximum and minimum steady-state crystal nucleation rates are identified.

引用

页码：183 / 191

页数：9

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