Radiation dimensional stability of graphite with an uncalcined coke-filler

Structure and properties degradation of the nuclear graphite under neutron irradiation

“…At this, the difference in the rates of radiation dimensional change increases with increasing irradiation temperature. temperatures after neutron irradiation (E > 0.18 MeV) to fluence 4×10 24 n/m 2 (replotted from [13]; lines are guide to the eye).…”

“…MPG-6 is manufactured based on uncalcined petroleum coke as the filler. These cokes usage facilitates the formation of a monolithic structure without distinct boundaries between the coke-filler and coke-binder areas, thus affecting the dimensional stability of a products made from such graphite [23,24]. MPG-6 has almost no noticeable difference in structure between the binder and filler regions, and also has smaller crystallite size dispersion [25].…”

“…Fig.6. Relative change in linear dimensions as a temperature function for HOPG samples with different treatment (graphitization) temperatures after neutron irradiation (E > 0.18 MeV) to fluence 4×1024 n/m 2 (replotted from[13]; lines are guide to the eye).…”