Abstract
Samples of sodium silicate glasses heat-treated in the region of immiscibility were studied to characterise the physical properties and to determine the dependence of physical properties on microstructure. Independent measurements of the elastic moduli and thermal expansion characteristics were examined.
The magnitudes of elastic moduli and coefficients of thermal expansion were controlled by the total amount of soda present. The temperature dependence of the physical properties, however, was greatly influenced by the amount and distribution of the phases present. In general, glasses with two independently interconnected phases were more rigid than homogeneous materials having the same nominal composition. The properties of glasses with a second phase dispersed as particles in a continuous matrix phase were determined primarily by the properties of the continuous phase. The observed behaviour of the physical properties supports the conclusion of three-dimensional interconnectivity of phases developed in the unstable region of immiscibility for sodium silicate glasses.
Article PDF
Similar content being viewed by others
Explore related subjects
Discover the latest articles, news and stories from top researchers in related subjects.Avoid common mistakes on your manuscript.
References
S. D. Stookey, Glastech. Ver. 32K (V. Internationaler Glaskongress, 1959) p. V/1.
S. M. Ohlberg, H. R. Golob, and D. W. Strickler, Symposium on Nucleation and Crystallisation in Glasses and Melts (Amer. Ceram. Soc., 1962) p. 55.
R. Roy, J. Amer. Ceram. Soc. 43 (1960) 670.
Idem, Symposium on Nucleation and Crystallisation in Glasses and Melts (Amer. Ceram. Soc., 1962) p. 39.
R. C. Devrier, R. Roy, and E. F. Osborn, J. Amer. Ceram. Soc. 49 (1955) 158.
R. J. Charles, ibid 49 (1966) 55.
R. H. Redwine and M. A. Conrad, “Ceramic Microstructures — Their Analysis, Significance, and Production”, Third International Symposium on Materials, University of California at Berkeley, 13–16 June, 1966; proceedings to be published.
J. W. Gibbs, “Collected Work”, Vol. 1 (Longmans, Green, New York, 1948) pp. 105, 252.
J. W. Cahn, Acta Met. 9 (1961) 795.
Idem, ibid 10 (1962) 907.
Idem, J. Chem. Phys. 42 (1965) 93.
J. W. Cahn and R. J. Charles, Phys. and Chem. Glasses 6 (1965) 181.
M. Goldstein, J. Amer. Ceram. Soc. 48 (1965) 126.
W. Haller, J. Chem. Phys. 42 (1965) 686.
H. E. Cook and J. E. Hilliard, Trans. Met. Soc. AIME 233 (1965) 142.
T. L. Tran, Glass Technol. 6 (1965) 161.
N. S. Andrew, V. I. Aver'yanov, and E. A. Porai-Koshits, in “The Structure of Glass”, Vol. 5, edited by N. A. Toropov and E. A. Porai-Koshits (Authorised Translation Consultants Bureau, New York, 1965).
S. Spinner and W. E. Tefft, ASTMProc. 61 (1961) 1221.
C. Zwikker, Interscience (New York) p. 300.
S. Spinner, J. Amer. Ceram. Soc. 39 (1956) 113.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Redwine, R.H., Field, M.B. The effect of microstructure on the physical properties of glasses in the sodium silicate system. J Mater Sci 3, 380–388 (1968). https://doi.org/10.1007/BF00550981
Received:
Revised:
Issue Date:
DOI: https://doi.org/10.1007/BF00550981