Ceramic reinforced aluminum-based composite material and preparation method thereof

The invention discloses a ceramic reinforced aluminum-based composite material and a preparation method thereof, and belongs to the technical field of aluminum-based composite materials. Comprising the following steps: S1, adding silicon carbide grinding balls and a second solvent into aluminum powder (1-10 [mu] m), graded silicon carbide particles, chromite and pyrite, and carrying out first-stage ball-milling mixing; the silicon carbide particles are composed of first silicon carbide particles (10-12 microns) and second silicon carbide particles (25-30 microns) according to the volume ratio of (3-4): (6-7) and account for 55%-60% of the total volume of the silicon carbide particles and the aluminum powder. S2, polyvinylpyrrolidone is added, and second-stage ball milling and material mixing are carried out; s3, drying after mixing; and S4, hot pressed sintering is conducted, the sintering temperature ranges from 560 DEG C to 580 DEG C, the pressure ranges from 20 MPa to 40 MPa, and the heat preservation time