Nucleation and anionic environment of Er3+ in a germanate glass

被引:31
作者
Mortier, M [1 ]
机构
[1] CNRS, UMR 7574, Grp Opt Terres Rares, F-92195 Meudon, France
关键词
D O I
10.1016/S0022-3093(02)01856-2
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
The nucleation of PbF2 crystallites has been investigated in a germanate glass (GeO2-PbO-PbF2) doped with different erbium oxide and halides: Er2O3, ErF3, ErOF and ErCl3. Differential thermal analysis has been conducted on a unique glass composition doped with a variable content of these four erbium compounds. A memory of the initial coordination sphere, anionic neighbouring, of the erbium ions before melting of the powders has been observed in the as melted glasses through the variation of their thermal analysis curves and through their nucleation tendency obtained after thermal treatments. (C) 2003 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:56 / 62
页数:7
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