Photoluminescence Spectra and Crystallization of θ-Al2O3 and α-Al2O3 from AlOOH-Fe(NO3)3 Gels

被引：0
|
作者：
J. Kákoš
L′. Bača
P. Veis
L. Pach
机构：
[1] Slovak University of Technology,Department of Ceramics, Glass and Cement, Faculty of Chemical Technology
[2] Comenius University,Department of Plasma Physics, Faculty of Mathematics and Physics
[3] Mlynska dolina,undefined
来源：
Journal of Sol-Gel Science and Technology | 2001年 / 21卷
关键词：
photoluminescence; sol-gel; boehmite; Al; O; crystallization;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Diphasic boehmite derived unseeded and seeded (by either α-Al2O3, α-Fe2O3, or Fe(NO3)3) alumina gel planar monoliths were examined by DTA, XRD and photoluminescence spectroscopy. Luminescence spectra enable sensitive monitoring of the Θ- and α-Al2O3 crystallization in heat-treated gels due to Cr3+ impurity traces. Fe(NO3)3 unlike other seeds effectively influences crystallization of both Θ- and α-Al2O3. The present results are interpreted as prevailing solution or Fe3+ ion effect on the crystallization process.
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页码：167 / 172
页数：5
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