Accession Number : AD0602737


Title :   RESEARCH AND DEVELOPMENT ON ADVANCED GRAPHITE MATERIALS. VOLUME XXXI. IMPREGNATION OF GRAPHITE.


Descriptive Note : Rept. for Oct 61-May 63,


Corporate Author : NATIONAL CARBON CO LAWRENCEBURG TENN


Personal Author(s) : Waylett,C E ; Carter,M B ; Spring,M A


Report Date : May 1964


Pagination or Media Count : 68


Abstract : The impregnation of carbon and graphite materials with carbonaceous liquids and the subsequent heat treatment required to convert these liquids to coke and graphite in the pores of the base materials is discussed. The purpose of the impregnation process is to increase the strength and density and decrease the porosity of the finished articles. Impregnation procedures, the natures of the impregnants, and base stock structure affect the physical properties of impregnated graphite. Mercury porosimetry is used to define the pore structure of the bodies to be impregnated and aid in selection of impregnant and impregnating procedure. The physical properties of the impregnated graphite are related to the performance of nozzle inserts in a sub-scale solid propellant rocket motor. (Author)


Descriptors :   *CARBON , *MANUFACTURING , *ROCKET NOZZLES , IMPREGNATION , PHYSICAL PROPERTIES , COMPOSITE MATERIALS , GRAPHITE , LIQUIDS , HEAT TREATMENT , POROSITY , DENSITY , STRUCTURAL PROPERTIES , ELASTIC PROPERTIES , PLASTICS , HIGH TEMPERATURE , PERMEABILITY , ELECTRICAL RESISTANCE , TENSILE PROPERTIES , THERMAL PROPERTIES , EROSION , THERMOPLASTIC RESINS


Distribution Statement : APPROVED FOR PUBLIC RELEASE