Carbon ceramic brake disc assembly and preparation method and application thereof

The invention discloses a carbon-ceramic brake disc assembly and a preparation method and application thereof. The carbon-ceramic brake disc assembly is composed of n static disc assemblies, n + 1 movable discs, a pressure bearing disc and a pressing disc. The static disc, the movable disc, the pressure-bearing disc and the pressing disc all comprise carbon fiber reinforcement bodies, C matrixes and SiC matrixes, the mass fraction of the C matrixes in the movable disc is 28%-50%, and the mass fraction of the C matrixes in the static disc, the pressure-bearing disc and the pressing disc is 38%-55%; according to the carbon-ceramic material brake disc assembly, the static disc assembly, the pressure-bearing disc and the pressing disc, the carbon content is slightly higher than that of a movable disc, the ceramic content is slightly lower than that of the movable disc, the hardness is slightly lower than that of the movable disc, the compression elasticity modulus is 20%-50% lower than that of the movable disc, i