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Carbon materials, especially graphite and C/C composites modified by element dopants are still one of the candidate plasma facing materials (PFM). Recent several years, a series of B-, Ti-, Si-doped graphite and B_4C-C/C composites have been developed by means of hot press. The experiments of chemical sputtering and thermal desorption indicated that some amount of boron in carbon materials can effectively reduce the yields of chemical sputtering and the methane desorpted by post-irradiation and can decrease the peak temperatures of thermal desorption spectrum (TDS). However, it is not enough to judge the properties of PFM only by every
Carbon materials, particularly graphite and C / C composites modified by element dopants are still one of the candidate plasma facing materials (PFM). Recent years, a series of B-, Ti-, Si-doped graphite and B_4C-C / C composites have been developed by means of hot press. The experiments of chemical sputtering and thermal desorption indicated that some amount of boron in carbon materials can effectively reduce the yield of chemical sputtering and the methane desorpted by post-irradiation and can decrease the peak temperatures of thermal desorption spectrum (TDS). However, it is not enough to judge the properties of PFM only by every