Knowledge about the microstructure of nuclear graphite is critical to the understanding of its irradiation behavior in the reactor. Using microx-raydiffraction (mu xRd) two-dimensional (2d) maps, the crystallite cha...
详细信息
Knowledge about the microstructure of nuclear graphite is critical to the understanding of its irradiation behavior in the reactor. Using microx-raydiffraction (mu xRd) two-dimensional (2d) maps, the crystallite character of IG110 and reactor pebble graphite was characterized at the submillimeter range with a spatial resolution of about 5 mu m. Various structures in the nuclear graphite were identified by comparing the x-raydiffraction peak intensity, position, and full width at half maximum (FWHM) 2dmaps. The two-peak feature of the FWHM histograms seen in pebble graphite may be related to the raw coke and natural graphite used as raw materials. With these results, it can be concluded that the mu xRd2d map is an effective method to characterize the microstructure of nuclear graphite.
暂无评论