Claims
- 1. A method for maintaining a protective coating on the exposed surfaces of at least one component in the high temperature zone of a jet engine or rocket motor during operation thereof which comprises introducing into said engine's fuel an effective amount of a soluble additive which does not react with said protective coating and is capable of being oxidized upon combustion of said fuel to form a compound of a type required to sustain said protective coating.
- 2. A method of repairing a damaged protective coating on the exposed surfaces of at least one component in the high temperature zone of a jet engine or rocket motor during operation thereof which comprises introducing into said engine's fuel an effective amount of a soluble additive which does not react with said protective coating and is capable of being oxidized upon combustion of said fuel to form a compound of a type required to repair said protective coating.
- 3. A method according to claims 1 or 2 wherein at least one component in the high temperature zone comprises a carbon-carbon composite component coated with silicon carbide and the addtive to the engine's fuel is a silicon-containing compound capable of being oxidized to SiO.sub.2 when the fuel is combusted.
- 4. The method of claim 3 wherein the silicon-containing compound is tetraethyl silane.
- 5. A method for maintaining a protective coating of SiC on the surfaces of a carbon-carbon composite component of a turbine section of a jet engine during operation thereof which comprises introducing into said engine's fuel an amount of tetraethyl silane sufficient to sustain said protective coating during combustion of said fuel.
Parent Case Info
This application is a continuation-in-part of application Ser. No. 192,066 filed Sept. 29, 1980, now abandoned.
US Referenced Citations (9)
Foreign Referenced Citations (1)
Number |
Date |
Country |
633239 |
Dec 1961 |
CAX |
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
192066 |
Sep 1980 |
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