Effect of fluorine on silicate network for CaO-CaF2-SiO2 and CaO-CaF2-SiO2-FeOx glasses

被引：82
|
作者：
Hayashi, M [1 ]
Nabeshima, N [1 ]
Fukuyama, H [1 ]
Nagata, K [1 ]
机构：
[1] Tokyo Inst Technol, Dept Chem & Mat Sci, Meguro Ku, Tokyo 1528552, Japan
来源：
ISIJ INTERNATIONAL | 2002年 / 42卷 / 04期
关键词：
chemical state of fluorine; polymerization; silicate network; X-ray photoelectron spectroscopy; Mossbauer spectroscopy;
D O I：
10.2355/isijinternational.42.352
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The chemical state of fluorine and the effect of fluorine addition on the degree of polymerization of silicate network have been investigated for the CaO-SiO2-CaF2 and CaO-SiO2-CaF2-FeOx glasses using the Xray photoelectron spectroscopy (XPS) and Mossbauer spectroscopy measurements. The F1s XPS spectra indicate that the fluorine is dominantly coordinated with calcium rather than silicon. The O1s XPS spectra for the CaO-SiO2-CaF2 glasses and the values of Fe2+/Fe3- obtained by Mbssbauer spectra for the CaO-SiO2-CaF2-FeOx, glasses indicate that CaF2 addition does not depolymerize the silicate network for both systems.
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页码：352 / 358
页数：7
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