Accession Number : ADD012085

Title :   Method for Preparing an Improved Pitch Impregnant for a Carbon-Carbon Composite.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON DC

Personal Author(s) : Zimmer,James E ; Salvador,Linda M

Report Date : 19 Nov 1985

Pagination or Media Count : 9

Abstract : A pitch fraction for impregnating a carbon fiber reinforcing structure which represents the portion of a pitch which is insoluble in cyclohexane and soluble in pyridine. Also provided is a carbon fiber-reinforced carbon-carbon composite made by impregnating a multidirectional carbon fiber reinforcing structure with the above-described pitch fraction, carbonizing the pitch and graphitizing the resulting structure.

Descriptors :   *PATENTS, *COMPOSITE MATERIALS, *CARBON CARBON COMPOSITES, *IMPREGNATION, PITCH(MATERIAL), CARBON FIBERS, REINFORCING MATERIALS, CYCLOHEXANES, STRUCTURAL PROPERTIES, FRACTIONATION, STACKING, UNIDIRECTIONAL, FABRICATION

Subject Categories : Refractory Fibers
      Laminates and Composite Materials

Distribution Statement : APPROVED FOR PUBLIC RELEASE