Study of the principles of fluorine fixation in melts and glass with polar groups
The results of the study of a series of M2O-ZrO2-SiO2 (M = Li, Na) and Li2O-Ga2O3-SiO2 glass, where the fraction of alkali oxide is replaced by fluoride, are given. Based on the considerations on halogen binding in the melt by the bulky polar groups, a simple model, which allows the prediction of the amount of halogen remaining in glass, is suggested. Good agreement of the calculated and experimental results is obtained: the model correctly predicts the halogen content in glass without a crystal phase, as well as the concentration boundary of the onset of crystallization in glass with excess fluorine content.
Keywordsalkali-silicate glass gallium zirconium halogen synthesis losses
Unable to display preview. Download preview PDF.
- 3.Hill, R.G. and Wilson, A.D., Structure of ionomer glasses, Glass Technol., 1988, vol. 29, no. 4, pp. 150–158.Google Scholar
- 4.Sil’vestrovich, S.I. and Rabinovich, E.M., On the problem of the structure and properties of fluoride and phosphate opal glasses, Tr. Inst.-Mosk. Khim. Tekhnol. Inst. im. D.I. Mendeleeva, 1959, no. 27, pp. 78–97.Google Scholar
- 5.Rabinovich, E.M., On the behavior of fluorine in silicate glasses, Neorg. Mater., 1967, vol. 3, no. 5, pp. 855–859.Google Scholar
- 6.Rabinovich, E.M., On the structural role of fluorine in silicate glasses, Phys. Chem. Glasses, 1983, vol. 24, no. 2, pp. 54–56.Google Scholar
- 7.Kogarko, L.N. and Krigman, L.D., Ftor v silikatnykh rasplavakh i magmakh (Fluorine in Silicate Melts and Magmas), Moscow: Nauka, 1981.Google Scholar
- 8.Shinozaki, N., Okusu, H., Mizoguchi, K., and Suginohara, Y., The electrical conductivity and the infrared absorption spectra of Na2O-SiO2-NaF melts, J. Jpn. Inst. Met., 1977, vol. 41, no. 6, pp. 607–612.Google Scholar
- 9.Kohn, C.S., Dupree, R., Mortuza, M.G., and Henderson, C.M.B., NMR evidence for five- and six-coordinated aluminum fluoride complexes in F-bearing aluminosilicate glasses, Am. Mineral., 1991, vol. 76, nos. 1–2, pp. 309–312.Google Scholar
- 12.Kiprianov, A.A., Oxyhalide electrode glasses: Specific features of the binding of halogens by glass-forming melts, Vestn. S.-Peterb. Univ., Ser. 4: Fiz., Khim., 2010, no. 1, pp. 122–132.Google Scholar
- 14.Kiprianov, A.A. and Pankratova, N.M., Controlled synthesis of oxyhalide glasses in the series Li2O-LiCl=SiO2, Glass Phys. Chem., 2015, vol. 41, no. 3 (in press).Google Scholar
- 16.Mazurin, O.V., Strel’tsina, M.V., and Shvaiko-Shvaikovskaya, T.P., Svoistva stekol i stekloobrazuyushchikh rasplavov. Spravochnik (Properties of Glasses and Glass-Forming Melts: A Reference Book), Leningrad: Nauka, 1973, vol. 3,part 1.Google Scholar