Fabrication of high-silica glass article

Details Fabrication of high-silica glass article Fabrication of high-silica glass article

1986-11-20

1987-11-17

Bashore, S. Leon

Glass manufacturing

Processes

With shaping of particulate material and subsequent fusing...

65900, 65901, 65DIG16, C03B 1909

Patent

active

047071745

ABSTRACT:
Incorporation of fluorine into a porous silica body, such as an unsintered body produced by a sol-gel method, by VAD or OVPO, reduces or eliminates bubble or pore formation upon re-heating of the glass formed by sintering of the porous material. Effective fluorine concentrations are between 0.01 and 5% by weight. The invention can be used advantageously in producing preforms and optical fiber.

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