X-ray powder diffraction study of leucite crystallisation

被引：0
|
作者：
Novotna, M.
Maixner, J.
机构：
[1] Inst Chem Techno Prague, Prague 16628 6, Czech Republic
[2] AS CR, Inst Inorgan Chem, Rez, Czech Republic
来源：
ZEITSCHRIFT FUR KRISTALLOGRAPHIE | 2006年
关键词：
leucite; crystallisation; phase transformation; powder diffraction;
D O I：
暂无
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
X-ray powder diffraction analysis was used to study leucite (KAlSi2O6) Crystallisation from amorphous precursors prepared by hydrothermal synthesis. Crystallisation of leucite was monitored at 800 degrees C, 900 degrees C and 1000 degrees C. At these high temperatures the stable form of leucite is a cubic one (high leucite), and a displacement phase transformation to tetragonal form (low leucite) takes place as it cools. The process of leucite transformation was studied using X-ray powder diffractometer D8 equipped with MRI high temperature chamber. It was detected that the transition from high temperature phase into the low leucite occurs below 550 degrees C.
引用
收藏
页码：455 / 459
页数：5
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