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无机材料学报

无机材料学报

• 研究论文 • 上一篇    下一篇

球晶材料的TEM—EDAX剖析

张干城; 王开泰; 李汉良; 沈定坤   

  1. 中国科学院上海硅酸盐研究所;上海 200050
  • 收稿日期:1996-08-06 修回日期:1996-10-07 出版日期:1997-10-20 网络出版日期:1997-10-20

The TEM-EDAX Analysis of Spherulite Material

ZHANG Gancheng; WANG Kaitai; LI Hanhang; SHEN Dingkun   

  1. Shanghai Institute of Ceramics; Chinese Academy of Sciences Shanghai 200050 China
  • Received:1996-08-06 Revised:1996-10-07 Published:1997-10-20 Online:1997-10-20

PDF (PC)

820

被引次数

1

摘要： 观察了R2O－RO－Al2O3-SiO2系某一整体析出球晶的微晶玻璃中球晶的生长过程．获得随着晶化时间的增加或晶化温度升高，球晶直径增大；但球晶数目保持不变．发现了核化温度与球晶直径关系呈抛物线型．以TEM－EDAX剖析了球晶的雏型内部和近邻玻璃基体的显微结构及其演变．清楚地揭示了球晶生长过程中所发生的组成变化．

关键词: 球晶, 微晶玻璃, 显微结构

Abstract: The spherulite growing process was observed in a glass-ceramics which consists of crystals, being in the shape of spherulites in the R2O-RO-Al2O3-SiO2 system.
It was obtained that spherulite diameter increases with the increase of crystallization time or the elevation of crystallisation temperature,
however the number of the spherulites maintains unchanged. Also it was discovered that the relationship between spherulite diameter and
nucleation temperature is a parabola type. The microstructure and its variation of inside of spherulite embryo and surrounding glass matrix were analyzed by
TEM and EDAX. The component change in the spherulite growing process was revealed clearly.

Key words: spherulite, glass-ceramics, microstructure