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

M. Hayashi; N. Nabeshima; H. Fukuyama; K. Nagata

doi:10.2355/isijinternational.42.352

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

M. Hayashi, N. Nabeshima, H. Fukuyama, K. Nagata

Research output: Contribution to journal › Article › peer-review

57 Citations (Scopus)

Abstract

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-FeO_x glasses using the X-ray photoelectron spectroscopy (XPS) and Mössbauer 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 Mössbauer spectra for the CaO-SiO₂-CaF₂-FeO_x glasses indicate that CaF₂ addition does not depolymerize the silicate network for both systems.

Original language	English
Pages (from-to)	352-358
Number of pages	7
Journal	Isij International
Volume	42
Issue number	4
DOIs	https://doi.org/10.2355/isijinternational.42.352
Publication status	Published - 2002
Externally published	Yes

Keywords

Chemical state of fluorine
Mössbauer spectroscopy
Polymerization
Silicate network
X-ray photoelectron spectroscopy

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

Access to Document

10.2355/isijinternational.42.352

Cite this

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title = "Effect of fluorine on silicate network for CaO-CaF2-SiO2 and CaO-CaF2-SiO2-FeOx glasses",

abstract = "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 X-ray photoelectron spectroscopy (XPS) and M{\"o}ssbauer 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 M{\"o}ssbauer spectra for the CaO-SiO2-CaF2-FeOx glasses indicate that CaF2 addition does not depolymerize the silicate network for both systems.",

keywords = "Chemical state of fluorine, M{\"o}ssbauer spectroscopy, Polymerization, Silicate network, X-ray photoelectron spectroscopy",

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AU - Hayashi, M.

AU - Nabeshima, N.

AU - Fukuyama, H.

AU - Nagata, K.

PY - 2002

Y1 - 2002

N2 - 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 X-ray photoelectron spectroscopy (XPS) and Mössbauer 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 Mössbauer spectra for the CaO-SiO2-CaF2-FeOx glasses indicate that CaF2 addition does not depolymerize the silicate network for both systems.

AB - 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 X-ray photoelectron spectroscopy (XPS) and Mössbauer 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 Mössbauer 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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