An x-ray photoelectron spectroscopic study of the chemical states of fluorine atoms in calcium silicate glasses

Satoshi Hayakawa; Akira Nakao; Chikara Ohtsutki; Akiyoshi Osaka; Shuji Matsumoto; Yoshinari Miura

doi:10.1557/JMR.1998.0093

An x-ray photoelectron spectroscopic study of the chemical states of fluorine atoms in calcium silicate glasses

Satoshi Hayakawa, Akira Nakao, Chikara Ohtsutki, Akiyoshi Osaka, Shuji Matsumoto, Yoshinari Miura

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

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Abstract

X-ray photoelectron spectroscopy has been used to examine the chemical states of fluorine in the glasses of composition xCaF₂(50 - x)CaO · 50SiO₂ (x = 5, 10, 15, 20, and 25 mol%) and xCaF₂(50 - x/2)CaO(50 - x/2)SiO₂ (x = 5, 10, 15, and 20 mol%). The analysis of the F1s spectra indicated that Ca²⁺ and F^- ions introduced as CaF₂ are favorably located among the Si-O skeleton forming Ca-F clusters. The fraction of the bridging and nonbridging oxygen atoms was derived from the O1s spectra, and the network of the fluorine-containing glasses was concluded to depend only on the ratio CaO/SiO₂.

Original language	English
Pages (from-to)	739-743
Number of pages	5
Journal	Journal of Materials Research
Volume	13
Issue number	3
DOIs	https://doi.org/10.1557/JMR.1998.0093
Publication status	Published - Mar 1998

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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@article{3927adbc2ffd48f89a44c93c5d8b8392,

title = "An x-ray photoelectron spectroscopic study of the chemical states of fluorine atoms in calcium silicate glasses",

abstract = "X-ray photoelectron spectroscopy has been used to examine the chemical states of fluorine in the glasses of composition xCaF2(50 - x)CaO · 50SiO2 (x = 5, 10, 15, 20, and 25 mol%) and xCaF2(50 - x/2)CaO(50 - x/2)SiO2 (x = 5, 10, 15, and 20 mol%). The analysis of the F1s spectra indicated that Ca2+ and F- ions introduced as CaF2 are favorably located among the Si-O skeleton forming Ca-F clusters. The fraction of the bridging and nonbridging oxygen atoms was derived from the O1s spectra, and the network of the fluorine-containing glasses was concluded to depend only on the ratio CaO/SiO2.",

author = "Satoshi Hayakawa and Akira Nakao and Chikara Ohtsutki and Akiyoshi Osaka and Shuji Matsumoto and Yoshinari Miura",

note = "Funding Information: We are grateful to S. Matsumoto, Okayama University for technical support on XPS measurements. This work was supported by Grant-in-Aid for Scientific Research on Priority Areas, the Ministry of Education, Science, Culture and Sports (Japan), No. 07239235.",

year = "1998",

month = mar,

doi = "10.1557/JMR.1998.0093",

language = "English",

volume = "13",

pages = "739--743",

journal = "Journal of Materials Research",

issn = "0884-2914",

publisher = "Materials Research Society",

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T1 - An x-ray photoelectron spectroscopic study of the chemical states of fluorine atoms in calcium silicate glasses

AU - Hayakawa, Satoshi

AU - Nakao, Akira

AU - Ohtsutki, Chikara

AU - Osaka, Akiyoshi

AU - Matsumoto, Shuji

AU - Miura, Yoshinari

N1 - Funding Information: We are grateful to S. Matsumoto, Okayama University for technical support on XPS measurements. This work was supported by Grant-in-Aid for Scientific Research on Priority Areas, the Ministry of Education, Science, Culture and Sports (Japan), No. 07239235.

PY - 1998/3

Y1 - 1998/3

N2 - X-ray photoelectron spectroscopy has been used to examine the chemical states of fluorine in the glasses of composition xCaF2(50 - x)CaO · 50SiO2 (x = 5, 10, 15, 20, and 25 mol%) and xCaF2(50 - x/2)CaO(50 - x/2)SiO2 (x = 5, 10, 15, and 20 mol%). The analysis of the F1s spectra indicated that Ca2+ and F- ions introduced as CaF2 are favorably located among the Si-O skeleton forming Ca-F clusters. The fraction of the bridging and nonbridging oxygen atoms was derived from the O1s spectra, and the network of the fluorine-containing glasses was concluded to depend only on the ratio CaO/SiO2.

AB - X-ray photoelectron spectroscopy has been used to examine the chemical states of fluorine in the glasses of composition xCaF2(50 - x)CaO · 50SiO2 (x = 5, 10, 15, 20, and 25 mol%) and xCaF2(50 - x/2)CaO(50 - x/2)SiO2 (x = 5, 10, 15, and 20 mol%). The analysis of the F1s spectra indicated that Ca2+ and F- ions introduced as CaF2 are favorably located among the Si-O skeleton forming Ca-F clusters. The fraction of the bridging and nonbridging oxygen atoms was derived from the O1s spectra, and the network of the fluorine-containing glasses was concluded to depend only on the ratio CaO/SiO2.

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An x-ray photoelectron spectroscopic study of the chemical states of fluorine atoms in calcium silicate glasses

Abstract

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