INSITU MICROSCOPIC INVESTIGATIONS OF CRYSTAL-GROWTH PROCESSES IN THE SYSTEM BI2O3-GEO2

被引：23

作者：

SMET, F

VANENCKEVORT, WJP

机构：

[1] Department of Solid State Chemistry, Department of High Energy Physics, Faculty of Science, 6525 ED Nijmegen, Toernooiveld

来源：

JOURNAL OF CRYSTAL GROWTH | 1990年 / 100卷 / 03期

关键词：

D O I：

10.1016/0022-0248(90)90240-L

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

The crystal growth processes occurring in the system Bi2O3-GeO2 were investigated systematically by in situ high temperature microscopy. Nucleation, growth and dissolution of stable and metastable phases at temperatures between 700 and 1100 °C were directly observed and recorded by means of a video system. The morphology of each phase and its dependence on growth rate and motherphase composition is discussed, and a morphological phase diagram is given. The observed crystal forms are compared with the results of a Bravais-Friedel-Donnay-Harker analysis. Two new metastable phases are described and their location in the phase diagram is indicated. © 1990.

引用

页码：417 / 432

页数：16

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