The Si-O bonding in Na2O-TiO-SiO2 and K2O-TiO2-SiO2 glasses as studied by SiKβ X-ray fluorescence and infra-red absorption spectroscopy
- 82 Downloads
The SiKβ fluorescence X-ray and infra-red absorption spectra of Na2O-TiO2-SiO2 and K2O-TiO2-SiO2 glasses have been measured in order to study the Si-O bonding as a function of the composition of glass. The chemical shifts of the SiKβ peak relative to that of silica glass [Δλ=λ(SiO2)-λ(specimen)>0] and the wavenumbers of the infra-red absorption peaks around 950cm−1 and 1100 cm−1 have been determined from the spectra. The SiKβ chemical shift in both series of glasses increased with increasing total content of R2O and TiO2 and with decreasing ratio of TiO2/(K2O+TiO2), where R2O represents Na2O or K2O. The infra-red peaks around 950 cm−1 and 1100 cm−1 shifted towards lower wavenumbers with increasing total content of R2O and TiO2 and with decreasing ratio of TiO2/(R2O+TiO2). These experimental facts were interpreted as showing that the Si-O bond in glass was weakened as the total content of R2O and TiO2 increased and that the Si-O bond was weakened by R2O more than by TiO2.
KeywordsTiO2 Chemical Shift Total Content Silica Glass GeO2
Unable to display preview. Download preview PDF.
- 1.Bh. V. Janakirama Rao,Phys. Chem. Glasses 4 (1963) 22.Google Scholar
- 3.A. A. Loshmanov, V. N. Sigaev, R. Ya. Khodakovskaya, N. M. Pavlushkin andI. I. Yamzin, Tenth International Congress on Glass, Kyoto, No. 12 (Japanese Ceramic Society, Kyota, 1974) p. 9.Google Scholar
- 4.K. Takahashi, N. Mochida andY. Yoshida,J. Ceram. Soc. Japan 85 (1977) 330.Google Scholar
- 5.Y. S. Bobovich,Optika i Spekroskopiya 14 (1963) 647.Google Scholar
- 7.G. Bayer, O. Flörke, W. Hoffmann andH. Scheel,Glastech. Ber. 39 (1966) 242.Google Scholar
- 10.H. Maruyama, N. Soga andM. Kunugi, 16th Symposium on Glass, (Japanese Ceramic Society, Osaka, 1975) pp. 42–6Google Scholar
- 11.E. White andG. Gibbs,Amer. Mineral. 52 (1967) 985.Google Scholar
- 12.Idem, ibid. 54 (1969) 931.Google Scholar
- 18.H. Toyuki,J. Ceram. Soc. Japan 85 (1977) 554.Google Scholar
- 20.S. Sakka,Bull. Inst. Chem. Res., Kyoto Univ. 49 (1971) 349.Google Scholar
- 22.J. Sweet andW. White,Phys. Chem. Glasses 10 (1969) 246.Google Scholar