Research of Characteristics and Properties of Pyrocarbon Coatings

Abstract

One of the variants of the projected nuclear reactors possessing increased passive protection are reactors with coated particles and spherical fuel elements, one of the main components of which is pyrocarbon. Pyrocarbon has a high radiation and corrosion resistance, therefore, the researches aimed at the disposal of radiation wastes are also promising, as the problem of radiation wastes disposal is urgent problem not only for Ukraine, but for the whole world. It should be noted that due to its unique properties, pyrocarbon can be used in various fields of science and industry. For several years, the Gas Institute of NASU conducted studies of the production of pyrocarbon coatings through the pyrolysis of hydrocarbon gases in reactors with electrothermal fluidized bed. In order to determine the possibility of using pyrocarbon coatings obtained by the Gas Institute of NAS of Ukraine, it is necessary to conduct studies of their material-science characteristics and properties. The article presents studies of the assessment of density, purity, corrosion resistance and microrelief of pyrocarbon coatings. Intermediate conclusions concerning the possibility of using the obtained pyrocarbon were made. Bibl.16, Fig. 2, Tab.1.