To improve the ultra-high temperature oxidation resistance of graphite-based materials, a SiC transition layer of about 150 μm in thickness was prepared on graphite substrate by siliconizing method, and then a micro- laminated ZrC/MoSi_2 coating of 22.5 μm in total thickness(corresponding five modulation cycles) was deposited on siliconized graphite by DC magnetron sputtering. The crystallographic structure and morphology of the ZrC/MoSi_2- SiC composite coating before and after ultra- high temperature oxid...