Abstract
The infrared spectra from a series of MgO-Al2O3-SiO2 glasses containing TiO2 are consistent with the existence of a phase-separated structure consisting of a high silica phase and a high modifier phase of metasilicate composition. The invariance of the spectra throughout the range of pre-crystallization heat treatments and compositions precludes the possibility of significant changes in the average number of non-bridged oxygen ions per silica tetrahedron either during “nucleation” treatments or upon the addition of TiO2 to the base glass. The Raman spectra from the same series of glasses consist of two main high-frequency bands, at 1000 and 910 cm−1 which change markedly in relative intensity as TiO2 is added to the base glass, and several subsidiary bands at lower frequencies. It is suggested that the high-frequency bands arise from two dissimilar metasilicate-type structures which are the pre-cursors of the major crystalline phases which precipitate upon devitrification of the glasses, namely cordierite in the low titania glasses (rings of [SiO4]2− tetrahedra), and a pyroxene similar to enstatite in the high titania glasses (chains of [SiO4]2− tetrahedra).
Similar content being viewed by others
References
P. W. McMillan, “Glass Ceramics” (Academic Press, London, 1964).
R. C. De Vekey,Glass Technol. 14 (1973) 125.
A. G. Gregory andT. J. Veasey,J. Mater. Sci. 6 (1971) 1312.
N. M. Pavlushkin,Sci. Tech. Commun. 2 (1971) 1051.
J. S. Thorp andW. Hutton, J. Phys. Chem. Solids42 (1981) 843.
Idem, ibid. 44 (1983) 1039.
C. N. Banwell, “Fundamentals of Molecular Spectroscopy”, (McGraw Hill, New York, 1972).
J. F. Scott andS. P. S. Porto,Phys. Rev. 161 (1967) 903.
J. Etchepare, M. Merian andL. Smetankin,J. Chem. Phys. 60 (1974) 1873.
B. E. Warren andJ. Biscoe,J. Amer. Ceram. Soc. 21 (1938) 49.
N. F. Borelli andG. J. Su, Mater. Res. Bull.3 (1968) 181.
G. J. Su andJ. Bock,J. Amer. Ceram. Soc. 53 (1970) 69.
M. Hass,J. Phys. Chem. Solids 3 (1970) 415.
W. L. Konijnendijk,Philips Res. Rept. Suppl. 1 (1975) 143.
J. Wong andC. A. Angell,Appl Spectrosc. Rev. 4(a) (1971) 155.
J. R. Ferraro, M. H. Manghrani andA. Quattrochi,Phys. Chem. Glasses 13 (4) (1972) 116.
P. A. Estep, J. J. Kovach, P. Waldstein andC. Karr, Proceedings 3rd Lunar Science Conference,Geochim. Cosmochim. Acta Suppl. 3 3 (1972) 3047.
P. Tartre, “Physics of Non-crystalline Solids” (North Holland, Amsterdam, 1975).
M. H. Manghrani, J. R. Ferraro andL. J. Basile,Appl. Spectrosc. 28 (1974) 256.
P. A. Estep, J. Kovach andC. Karr Jr, Proceedings 2nd Lunar Science Conference,Geochim. Cosmochim. Acta Supp. 2 3 (1971) 2137.
D. Crozier andR. W. Douglas,Phys. Chem. Glasses 6 (6) (1965) 240.
S. A. Brawer andW. B. White,J. Chem. Phys. 63 (1975) 2421.
W. L. Konijmemdijk,Glastech. Ber 48 (1975) 216.
J. R. Sweet, W. B. White, E. W. White andR. Roy, Proceedings 4th Lunar Science Conference.Geochim. Cosmochim. Acta Suppl. 4 1 (1973) 389.
G. W. Fabel, W. B. White, E. W. White andR. Roy,ibid. 1 (1972) 939.
J. Etchpare, “Amorphous Materials”, edited by R. W. Douglass and B. Ellis, (Wiley Intersciences, London, 1970) 337.
W. A. Deer, R. A. Howie andJ. Zussman, “Rock forming minerals” Vols. 1 to 4 (Longmans, London, 1962).
S. Brawer,Phys. Rev. 11 (1975) 3173.
B. E. Warren andR. L. Mozzi,J. Appl. Cryst. 2 (1969) 164.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Hutton, W., Thorp, J.S. The vibrational spectra of MgO-Al2O3-SiO2 glasses containing TiO2 . J Mater Sci 20, 542–551 (1985). https://doi.org/10.1007/BF01026525
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF01026525