Study of fluorine losses in oxyfluoride glasses

被引：41
作者：
Bueno, LA
Messaddeq, Y
Dias, FA
Ribeiro, SJL
机构：
[1] UNOESC, Grp Inovacoes Tecnol, Area Ciencias Exatas & Terra, BR-89560000 Videira, SC, Brazil
[2] IGCB, BR-89275000 Schroeder, SC, Brazil
[3] UNESP, Inst Quim, BR-14801970 Araraquara, SP, Brazil
[4] Univ Brasilia, BR-70910900 Brasilia, DF, Brazil
来源：
JOURNAL OF NON-CRYSTALLINE SOLIDS | 2005年 / 351卷 / 52-54期
基金：
巴西圣保罗研究基金会;
关键词：
D O I：
10.1016/j.jnoncrysol.2005.10.007
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：
Glasses in PbGeO3-PbF-CdF2 and GeO2-PbO-PbF2-CdF2 systems were studied and the fluorine losses during synthesis were investigated. Samples were characterized by differential scanning calorimetry (DSC), X-ray diffraction, Fourier transform infrared spectroscopy (FTIR) and Raman scattering spectroscopy. The use of stoichiometric germanate glass, PbGeO3, instead of introducing individual oxides (GeO2 + PbO) lead to decreasing fluorine losses, as detected by a fluorine ion selective electrode. The main structural features obtained from vibrational spectroscopy could be described by a metagermanate basic structure permeating fluorine rich regions. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码：3804 / 3808
页数：5
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