Oxidation and Wear Resistant Carbon-Carbon Composites
Abstract
Widespread application of carbon carbon composites has been restricted by their low oxidation resistance at elevated temperatures. A major barrier to the development of protective ceramic coatings for these materials is the lack of experimental methods of depositing adherent, crack-free, protective ceramic deposits with high deposition rates in a cost-effective manner. The objective of this project is to develop dense, adherent, electrophoretically deposited ceramic coatings on carbon-carbon composites, giving rise to enhanced oxidation resistance and wear resistance. Ceramic materials, coating additives and methods for bonding and densifying the selected materials have been identified. A broad range of ceramic materials were successfully deposited on carbonaceous substrates from a non-aqueous deposition bath using electrophoresis. Deposited ceramic layers were bonded using either polymeric binders of organometallic compounds or inorganic phosphate-based binders. Attempts to densify the ceramic coatings were unsuccessful.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 30, 1991
- Accession Number
- ADA238475
Entities
People
- Carlos E. Salinas
- G. D. Hitchens
- Oliver J. Murphy
- Richard O. Corden