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High temperature resistant organopolysiloxane coating for protecting and repairing rigid thermal insulation
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Copyright Year | 1999 |
| Description | Ceramics are protected from high temperature degradation, including high temperature, oxidative, aeroconvective degradation by a high temperature and oxidation resistant coating of a room temperature curing, hydrolyzed and partially condensed liquid polyorganosiloxane to the surface of the ceramic. The liquid polyorganosiloxane is formed by the hydrolysis and partial condensation of an alkyltrialkoxysilane with water or a mixture of an alkyltrialkoxysilane and a dialkyldialkoxysilane with water. The liquid polyorganosiloxane cures at room temperature on the surface of the ceramic to form a hard, protective, solid coating which forms a high temperature environment, and is also used as an adhesive for adhering a repair plug in major damage to the ceramic. This has been found useful for protecting and repairing porous, rigid ceramics of a type used on reentry space vehicles. |
| File Size | 752362 |
| Page Count | 10 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20000031392 |
| Archival Resource Key | ark:/13960/t11p31k0f |
| Language | English |
| Publisher Date | 1999-11-16 |
| Access Restriction | Open |
| Subject Keyword | Nonmetallic Materials Degradation Thermal Resistance Thermal Insulation Reentry Vehicles Polysiloxanes Coating High Temperature Ceramics High Temperature Environments Protective Coatings Room Temperature Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Patent |
