Accession Number : AD0274939


Title :   RESEARCH AND DEVELOPMENT ON ADVANCED GRAPHITE MATERIALS. VOLUME III. DECORATION OF DISLOCATIONS AND LOW ANGLE GRAIN BOUNDARIES IN GRAPHITE SINGLE CRYSTALS


Corporate Author : NATIONAL CARBON CO INC CLEVELAND OHIO


Personal Author(s) : BACON,ROGER ; SPRAGUE,RICHARD


Report Date : 31 Oct 1961


Pagination or Media Count : 1


Abstract : Dislocations and low angle grain boundaries in si gle crystal graphite have been decorated by introducing into the crystal Cs, Br, a d FeCl3, which are known to form lamellar compounds with graphite. T H EXIST C OF POCKE S OR INTERNAL CRACKS, INITIATED AT AND BOUNDED BY TILT BOUNDARI S, H S BE INFERR Circular pockets of trapped gas bubbles are believed to nucle te t sites of co de d vac cy disks. (Author)


Descriptors :   *ELECTRON MICROSCOPY , *GRAPHITE , *SINGLE CRYSTALS , ATMOSPHERIC PRECIPITATION , BROMINE , CESIUM , CHEMICAL PRECIPITATION , CHLORIDES , CRYSTAL LATTICES , CRYSTAL STRUCTURE , DEFORMATION , DIFFUSION , FRACTURE(MECHANICS) , GRAIN STRUCTURES(METALLURGY) , IMPURITIES , IRON COMPOUNDS , MICROSTRUCTURE , SHEAR STRESSES , SURFACES


Distribution Statement : APPROVED FOR PUBLIC RELEASE