caa a22 4500 388020733 CHVBK 20180307124923.0 cr unu---uuuuu 161130e199803 xx s 000 0 eng 10.1557/JMR.1998.0093 doi S0884291400043302 pii (NATIONALLICENCE)cambridge-10.1557/JMR.1998.0093 An x-ray photoelectron spectroscopic study of the chemical states of fluorine atoms in calcium silicate glasses [Elektronische Daten] 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. Copyright © Materials Research Society 1998 Hayakawa Satoshi Department of Bioscience and Biotechnology, Faculty of Engineering, Okayama University, Tsushima, Okayama-shi 700, Japan Nakao Akira Department of Bioscience and Biotechnology, Faculty of Engineering, Okayama University, Tsushima, Okayama-shi 700, Japan Ohtsutki Chikara Department of Bioscience and Biotechnology, Faculty of Engineering, Okayama University, Tsushima, Okayama-shi 700, Japan Osaka Akiyoshi Department of Bioscience and Biotechnology, Faculty of Engineering, Okayama University, Tsushima, Okayama-shi 700, Japan Matsumoto Shuji Department of Environmental Chemistry and Materials, Faculty of Environmental Science and Technology, Okayama University, Tsushima, Okayama-shi 700, Japan Miura Yoshinari Department of Environmental Chemistry and Materials, Faculty of Environmental Science and Technology, Okayama University, Tsushima, Okayama-shi 700, Japan Journal of Materials Research Cambridge University Press 13/3(1998-03), 739-743 0884-2914 13:3<739 1998 13 JMR https://doi.org/10.1557/JMR.1998.0093 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1557/JMR.1998.0093 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Hayakawa Satoshi Department of Bioscience and Biotechnology, Faculty of Engineering, Okayama University, Tsushima, Okayama-shi 700, Japan NATIONALLICENCE 700 1- Nakao Akira Department of Bioscience and Biotechnology, Faculty of Engineering, Okayama University, Tsushima, Okayama-shi 700, Japan NATIONALLICENCE 700 1- Ohtsutki Chikara Department of Bioscience and Biotechnology, Faculty of Engineering, Okayama University, Tsushima, Okayama-shi 700, Japan NATIONALLICENCE 700 1- Osaka Akiyoshi Department of Bioscience and Biotechnology, Faculty of Engineering, Okayama University, Tsushima, Okayama-shi 700, Japan NATIONALLICENCE 700 1- Matsumoto Shuji Department of Environmental Chemistry and Materials, Faculty of Environmental Science and Technology, Okayama University, Tsushima, Okayama-shi 700, Japan NATIONALLICENCE 700 1- Miura Yoshinari Department of Environmental Chemistry and Materials, Faculty of Environmental Science and Technology, Okayama University, Tsushima, Okayama-shi 700, Japan NATIONALLICENCE 773 0- Journal of Materials Research Cambridge University Press 13/3(1998-03), 739-743 0884-2914 13:3<739 1998 13 JMR CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge