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Title: Tetraethyl orthosilicate-based glass composition and method

Patent ·
OSTI ID:870992

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:
Savannah River Site (SRS), Aiken, SC (United States)
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