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Making MgO/SiO2 Glasses By The Sol-Gel ProcessSilicon dioxide glasses containing 15 mole percent magnesium oxide prepared by sol-gel process. Not made by conventional melting because ingredients immiscible liquids. Synthesis of MgO/SiO2 glass starts with mixing of magnesium nitrate hexahydrate with silicon tetraethoxide, both in alcohol. Water added, and transparent gel forms. Subsequent processing converts gel into glass. Besides producing glasses of new composition at lower processing temperatures, sol-gel method leads to improved homogeneity and higher purity.
Document ID
19890000408
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Bansal, Narottam P.
(NASA Lewis Research Center, Cleveland, OH.)
Date Acquired
August 14, 2013
Publication Date
August 1, 1989
Publication Information
Publication: NASA Tech Briefs
Volume: 13
Issue: 8
ISSN: 0145-319X
Subject Category
Materials
Report/Patent Number
LEW-14714
Accession Number
89B10408
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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