Accession Number : ADD013126

Title :   Interstitially Protected Oxidation Resistant Carbon-Carbon Composite.

Descriptive Note : Patent, Filed 1 Feb 84, patented 26 May 87,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON DC

Personal Author(s) : Strangman,Thomas E ; Keiser,Robert J

Report Date : 26 May 1987

Pagination or Media Count : 4

Abstract : In accordance with the present invention there is provided a multidirectional carbon-carbon composite having at least one layer of a protective coating deposited on the carbon fiber bundles of the composite, wherein the protective layer consists of an underlayer portion of born carbide and an overlayer portion of silicon carbide. Also provided in accordance with the invention is a method for providing oxidation resistance for the carbon fiber bundles in a multidimensional carbon-carbon composite which comprises coating the bundles with at least one layer of a protective coating which consists of an underlayer portion of boron carbide and an overlayer portion of silicon carbide.

Descriptors :   *PATENTS, *CARBON CARBON COMPOSITES, *OXIDATION RESISTANCE, INTERSTITIAL, PROTECTIVE COATINGS, FIBER REINFORCED COMPOSITES, CARBON FIBERS, BORON CARBIDES, FILAMENTS, IMPREGNATION, THERMOPLASTIC RESINS, AEROSPACE INDUSTRY, AIRFRAMES, CRACKS, STRENGTH WEIGHT RATIO

Subject Categories : Laminates and Composite Materials
      Coatings, Colorants and Finishes

Distribution Statement : APPROVED FOR PUBLIC RELEASE