The isotropic pyrocarbon bulk materials were prepared by the fixed-bed chemical vapor deposition method, and the internal structure was composed of ribbon-like structure and spherical structure together. The friction behaviors of isotropic pyrocarbon at room temperature were studied by characterizing the microstructure and friction morphology. The frictional properties of isotropic pyrocarbon are greatly influenced by internal ribbon-like pyrocarbon. With a higher content of ribbon-like pyrocarbon, the material produces a moderately rough friction film, which improves the stability of the fric...
