Generation and collapse of bubbles in lead silicate glass

被引：1
|
作者：
Rahimi, Rafi Ali [1 ]
Sadrnezhaad, S. K. [2 ]
机构：
[1] Atom Energy Org Iran, NSTRI, Mat Res Sch, Esfahan, Iran
[2] Sharif Univ Technol, Dept Mat Sci & Engn, Tehran, Iran
来源：
GLASS PHYSICS AND CHEMISTRY | 2015年 / 41卷 / 03期
关键词：
amorphous materials; glasses; optical materials; oxides; defects; GRAVITY-DRIVEN FLOW; GAS BUBBLE; NUCLEATION; TRANSPORT; MELTS;
D O I：
10.1134/S1087659615030128
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：
Presence of bubbles affects quality of the lead silicate glass (LSG) samples. This paper presents the most recent results obtained on formation and collapse of bubbles in LSG melts. Main sources of the bubbles are dissolved gases and redox reactions. A foamy layer full of bubbles rapidly forms at top of the molten phase. Effect of viscosity and density of the melt on content and ascension rate of the bubbles are investigated. Number and mean diameter of the bubbles and thickness of the top bubbly layer are calculated from gas volume measurements and image analysis via J software.
引用
收藏
页码：307 / 315
页数：9
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