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Title: Ceramic composite coating

A thin, room-temperature-curing, ceramic composite for coating and patching metal substrates comprises a sol gel silica glass matrix filled with finely ground particles or fibers, preferably alumina. The sol gel glass is made by adding ethanol to water to form a first mixture, then separately adding ethanol to tetraethyl orthosilicate to form a second mixture, then slowly adding the first to the second mixture to make a third mixture, and making a slurry by adding the finely ground particles or fibers to the third mixture. The composite can be applied by spraying, brushing or trowelling. If applied to patch fine cracks, densification of the ceramic composite may be obtained to enhance sealing by applying heat during curing.
Inventors:
Issue Date:
OSTI Identifier:
426637
Assignee:
Dept. of Energy, Washington, DC (United States) PTO; SCA: 360601; PA: EDB-97:027364; SN: 97001724490
Patent Number(s):
US 5,595,945/A/
Application Number:
PAN: 7-796,974
Contract Number:
AC09-76SR00001
Resource Relation:
Other Information: PBD: 21 Jan 1997
Research Org:
E I Dupont De Nemours & Co Inc
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; COMPOSITE MATERIALS; SEALING MATERIALS; REPAIR; ALUMINIUM OXIDES; GLASS; SOL-GEL PROCESS; DEPOSITION