PRODUCTION OF ISOTROPIC CARBON MATERIAL

PURPOSE:To improve the production efficiency of the subject material by granulating fine particles of pitch having an optically anisotropic structure, forming the granules to a desired shape and subjecting the formed article successively to carbonization treatment and graphitization treatment. CONST...

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Bibliographic Details
Main Authors TAKEGAWA TOMEI, MOROTOMI HIDETOSHI, SHIODE TETSUO
Format Patent
LanguageEnglish
Published 23.07.1991
Subjects
ARTIFICIAL STONE
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
COMPOUNDS THEREOF
CONCRETE
INORGANIC CHEMISTRY
LIME, MAGNESIA
METALLURGY
NON-METALLIC ELEMENTS
REFRACTORIES
SLAG
TREATMENT OF NATURAL STONE
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Summary:PURPOSE:To improve the production efficiency of the subject material by granulating fine particles of pitch having an optically anisotropic structure, forming the granules to a desired shape and subjecting the formed article successively to carbonization treatment and graphitization treatment. CONSTITUTION:Fine particles of pitch having particle diameter of 1-500mum and fine optically anisotropic structure are formed to a desired shape by cold hydrostatic forming under 0.5-5T/cm . The formed article is carbonized by heating to about 1000-1200 deg.C at a heating rate of 0.01-5 deg.C/min and then heated to about 2000-2800 deg.C at a heating rate of 1-10 deg.C/min to obtain the objective isotropic carbon material.
Bibliography:Application Number: JP19890304666