Coating processes – With post-treatment of coating or coating material – Heating or drying
Patent
1983-08-01
1986-04-29
Childs, Sadie L.
Coating processes
With post-treatment of coating or coating material
Heating or drying
4273977, 4273978, 4274192, 4274197, 428408, B05D 302
Patent
active
045856753
ABSTRACT:
In accordance with the invention, a composition of matter is provided for forming a coating for protecting carbonaceous substrates from degradation at elevated temperatures. The composition of matter is a mixture of particulate silicon, silicon carbide and alumina. The mixture contains between about 40% and 50% silicon by weight of the total composition, between about 30% and 50% silicon carbide by weight of the total composition and between about 20% and 30% alumina by weight of the total composition. A method is provided for forming a primary protective coating on carbonaceous substrates utilizing the aforesaid mixture. An enhancement coating is provided for sealing the primary coating in applications where the substrate will be subjected to elevated temperatures and temperature cycling.
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Cate J. M.
Childs Sadie L.
LTV Aerospace and Defense Company
Sadacca S. S.
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