Manufacture of synthetic silica glass
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United States of America Patent
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Feb 24, 2015
Grant Date -
Feb 21, 2013
app pub date -
Feb 28, 2011
filing date -
Mar 2, 2010
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Abstract
Methods are described for manufacturing silica-based glass, in which silica precursor material is supplied to a synthesis flame in the form of an emulsion. The methods involve the steps of: forming an emulsion of an aqueous phase in a non-aqueous liquid silica precursor material; supplying the emulsion as a spray of droplets into a synthesis flame, whereby the precursor material is converted in the flame into a silica-containing soot; and collecting the soot on a substrate, either as a porous soot body for subsequent consolidation to glass or directly as a substantially pore-free glass.
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