Neutron radiation effect on carbon-graphite materials with pyrocarbon bond

Structure features of carbon-graphite materials produced by the methods of volumeteric gas-pyrocarbonization of porous medium have been considered. Results of radiation tests of carbon-graphite materials with powder and fibre fillers and a pyrocarbon matrix (bond) are presented. It is evident that under irradiation the materials in question undergo isotropic shrinkage, which magnitude is determined mainly by sample density and pyrocarbon content. Promising use of materials with a pyrocarbon bond in nuclear and thermonuclear reactor cores is discussed. 8 refs.; 14 figs