Tetraethyl orthosilicate-based glass composition and method

Patent · Tue Dec 31 23:00:00 EST 1996

OSTI ID:870992

Wicks, George G ^[1]; Livingston, Ronald R ^[1]; Baylor, Lewis C ^[2]; Whitaker, Michael J ^[2]; O'Rourke, Patrick E ^[3]

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1. Aiken, SC
2. North Augusta, SC
3. Martinez, GA

A tetraethyl orthosilicate-based, sol-gel glass composition with additives selected for various applications. The composition is made by mixing ethanol, water, and tetraethyl orthosilicate, adjusting the pH into the acid range, and aging the mixture at room temperature. The additives, such as an optical indicator, filler, or catalyst, are then added to the mixture to form the composition which can be applied to a substrate before curing. If the additive is an indicator, the light-absorbing characteristics of which vary upon contact with a particular analyte, the indicator can be applied to a lens, optical fiber, reagant strip, or flow cell for use in chemical analysis. Alternatively, an additive such as alumina particles is blended into the mixture to form a filler composition for patching cracks in metal, glass, or ceramic piping.

• Research Organization: WESTINGHOUSE SAVANNAH RIVER CO
• DOE Contract Number: AC09-89SR18035
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 5637507
• OSTI ID: 870992
• Country of Publication: United States
• Language: English

Related Subjects

/436/422/427/428/501/
acid
added
additive
additives
adjusting
aging
alternatively
alumina
alumina particles
analysis
analyte
applications
applied
blended
catalyst
cell
ceramic
characteristics
chemical
chemical analysis
composition
contact
cracks
curing
ethanol
fiber
filler
flow
flow cell
form
glass
glass composition
indicator
lens
light-absorbing
metal
method
mixing
mixture
optical
optical fiber
orthosilicate
orthosilicate-based
particles
particular
patching
ph
piping
range
reagant
selected
sol-gel
sol-gel glass
strip
substrate
temperature
tetraethyl
tetraethyl orthosilicate
tetraethyl orthosilicate-based
various
various applications
vary
water