The corrosion resistivity of C/C material against the plasma irradiation

Abstract

Corrosion resistivity of a Carbon/Carbon composite irradiated by both H₂ and Ar sheet plasmas is analyzed gravimetrically. It is found that the corrosion rate in the case of the H₂ plasma is three times grater than that of the Ar plasma. Such a value of three is approximately equal to the ratio of the heat fluxes of H₂ and Ar sheet plasmas, indicating that the physical sputtering can be main cause of the corrosion in our experiment.