SILICON CARBIDE COATINGS FOR HIGH TEMPERATURE APPLICATION OF CARBON FIBERS

Award Information
Agency: Department of Defense
Branch: Defense Advanced Research Projects Agency
Contract: N/A
Agency Tracking Number: 8958
Amount: $49,999.00
Phase: Phase I
Program: SBIR
Awards Year: 1988
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
2975 Redhill Ave, Costa Mesa, CA, 92626
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 DR LARRY A HARRAH
 (505) 344-4967
Business Contact
Phone: () -
Research Institution
N/A
Abstract
CARBON AND GRAPHITE FIBERS HAVE RELATIVELY POOR OXIDATION RESISTANCE. THEIR UTILITY IN HIGH TEMPERATURE APPLICATIONS CAN BE ENHANCED BY A WELL ADHERING OXIDATION RESISTANT COATING. SUCH COATINGS ALSO HAVE THE POTENTIAL FOR IMPROVING INTERFACIAL ADHESION WITH MATRIX RESINS. THE GOAL OF THIS PROGRAM IS TO DEMONSTRATE THAT A SIC COATING CAN BE APPLIED TO CARBON FIBERS WITH A SUFFICIENTLY STRONG BOND AT THE INTERFACE TO INSURE SURVIVAL AND TO ACT AS AN OXIDATION BARRIER. THE APPROACH IS TO CHEMICALLY MODIFY THE FIBER SURFACE TO FORM COVALENT BONDS WITH A POLYMERIC SIC PRECURSOR THAT IS THEN PYROLYTICALLY CONVERTED TO AN ADHERENT SIC COATING.

* Information listed above is at the time of submission. *

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