Glass manufacturing – Processes – With shaping of particulate material and subsequent fusing...
Patent
1998-06-03
1999-11-09
Silverman, Stanley S.
Glass manufacturing
Processes
With shaping of particulate material and subsequent fusing...
65414, 65421, C03B 2000
Patent
active
059791853
ABSTRACT:
The present invention is directed to a method for making silica glass and silica glass preforms. A liquid, preferably halide-free, silicon-containing compound capable of being converted by thermal oxidative decomposition to SiO.sub.2 is provided and introduced directly into the flame of a combustion burner, which converts the compound to silica, thereby forming finely divided amorphous soot. The soot is vaporized proximate the site where the liquid is converted into silica glass by atomizing the liquid, preferably with a stream of atomizing gas. A heater proximate the burner face and around the burner flame increases soot capture rate and allows for a reduction of the velocity of the atomizing gas. The amorphous soot is deposited on a receptor surface where, either substantially simultaneously with or subsequently to its deposition, the soot is consolidated into a body of fused silica glass.
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Blackwell Jeffery L.
Fu Xiaodong
Hawtof Daniel W.
Henderson Danny L.
Carlson Robert L.
Corning Incorporated
Servilla Scott S.
Silverman Stanley S.
Vincent Sean
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