Manufacture of vitreous silica product via a sol-gel process usi

Details Manufacture of vitreous silica product via a sol-gel process usi Manufacture of vitreous silica product via a sol-gel process usi

1992-08-14

1993-08-31

Jones, W. Gary

Glass manufacturing

Processes

Forming product or preform from molten glass

65 181, 65 184, 65901, 501 12, 501 54, C03B 1906

Patent

active

052404889

ABSTRACT:
Lowered cost fabrication including preparation of large bodies of void-free, high-silica glass, depends upon gellation of an aqueous sol of colloidal silica particles, followed by drying and firing of such gel. Freedom from cracks in the dried gel is the consequence of included polymeric material which wets the particles. The polymeric material is removed by thermal decomposition attended upon temperature attained in firing.

REFERENCES:
patent: 4397666 (1983-08-01), Mishima
patent: 4902328 (1990-02-01), Knauff
patent: 5009688 (1991-04-01), Nakanishi
J. Zarzycki, "The Gel-Glass Process", pp. 203-231, Glass: Current Issues, A. F. Wright and J. Dupois, eds., Boston, Mass. (1985).
T. Mori, "Silica Glass Tubes By New Sol-Gel Method", J. Non-Crystalline, Solids, 100, pp. 523-525 (1988).
Katagiri and Maekawa, J. Non-Crystalline Solids, 134, pp. 183-190 (1991).
K. Chou, "Effect of Ageing Media on Gel Structure and Monolithicity", Journal of Mat. Science 27, pp. 520-526, (1992).
R. Dorn, et al., "Glass from Mechanically Shaped Preforms", Glastech, Ber., 60, pp. 79-82 (1987).
P. Bachman, "Preparation of Quartz Tubes by Centrifugal Deposition of Silica Particles", Proceedings of the 14th European Conference on Optical Communications, London (1988).
Donald R. Ulhrich, "Sol-Gel Processing", Chemtech, pp. 242-249 (1988).
R. G. Horn, J. Am. Ceram. Soc., 73, p. 1117 (1990).
S. Lowell, "Introduction to Powder Surface Area", Wiley, 90-99, pp. 181-189 (1979).
J. B. MacChesney, "Influence of Dehydration/Sintering Condition on the Distribution of Impurities in Sol-Gel Derived Silica Glass", Mat. Res. Bull. pp. 1200-1221 (1987).
F. V. DiMarcello, "Fiber Drawing and Strength Properties", Optical Fiber Communications, ed. T. Li, Academic Press, New York (1985).

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