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2066006 
Technical Report 
Pyrogenic Polygermanosiloxane Coatings for Aluminum Substrates. (Reannouncement with New Availability Information) 
Sugama, T; Carciello, N; Taylor, C 
1991 
NTIS/03005814_a 
GRA and I 
GRA and I 
Ceramic coatings have not yet been widely employed on aluminum and magnesium alloys, and on other low melting-point metal substrates. There are two main reasons for this. First, coatings must adhere well and have an appropriate expansion coefficient, especially during temperature cycling, otherwise the coating will separate from the substrate. Second, many ceramic coatings must be applied and processed at high temperature using expensive and time-consuming methods, such as chemical vapor deposition. To solve these problems with conventional ceramic coatings, our previous work focused upon the synthesis of pre-ceramic inorganic polymetallosiloxan (PMS) polymers and upon the characteristics of the synthesized PMS as corrosion-protective coatings on aluminum substrates.