Process of manufacturing a vitreous silica product including hyd

Details Process of manufacturing a vitreous silica product including hyd Process of manufacturing a vitreous silica product including hyd

1994-03-31

1996-10-15

Hoffmann, John M.

Glass manufacturing

Processes of manufacturing fibers, filaments, or preforms

With measuring, controlling, sensing, programming, timing,...

423338, 65 172, 65395, 65426, 65412, C03B 37016

Patent

active

055650147

ABSTRACT:
Sol-gel processing of a silica glass body is facilitated by rapid drying. The body, having been heated to a temperature of about 200.degree. C. in a hermetically sealed vessel, is vented while reducing temperature. Termination of drying coincides with reduction to atmospheric pressure.

REFERENCES:
patent: 4432956 (1984-02-01), Zarzycki
patent: 5023208 (1991-06-01), Pope
patent: 5076980 (1991-12-01), Nogues
patent: 5240488 (1993-08-01), Chandross et al.
George W. Scherer, Theory of Drying, J. Am. Ceram. Soc., vol. 73, No. 1, pp. 3-14 (1990).
Perry's Chemical Engineer's Handbook, Sixth Ed., pp. 20-3 through 20-14.

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