Aluminum nitride-reinforced aluminum matrix composite (AMC) and preparation method thereof

An aluminum nitride-reinforced aluminum matrix composite (AMC), comprising the following components in percentage by mass:

• 0.6% to 2% of Si, 0.03% to 0.05% of Mg, 0.1% to 0.3% of Nb, 0.05% to 0.1% of Zr, 0.3% to 0.5% of Mo, 0.4% to 0.6% of Zn, 0.03% to 0.06% of Ta, 0.15% to 0.3% of Mn, 0.5% to 0.9% of Cu, 0.05% to 0.1% of Co, 0.001% to 0.004% of In, 0.001% to 0.003% of B, 0.005% to 0.015% of Ge, 0.001% to 0.003% of Ir, 0.05% to 0.15% of a rare earth element, 0.001% to 0.003% of Sn, 0.01% to 0.03% of nano-titanium carbide, 0.01% to 0.03% of nano-chromium nitride, 5% to 10% of an aluminum nitride nanofiber, 3% to 5% of nano-aluminum nitride, 0.08% to 0.12% of meso-tetramethyl-tetra-(p-aminophenyl) calix[4] pyrrole, 0.01% to 0.03% of sodium silicate, 0.02% to 0.05% of 1,3,5-triglycidyl-S-triazinetrione, and Al as a balance;
• wherein the rare earth element is a mixture of Sc, Y, Ce, and Pr at a mass ratio of (1-2):1:(1-3):(0.8-1.2);
• and
• the nano-titanium carbide has a particle size of 10 nm to 80 nm;
• the nano-chromium nitride has a particle size of 20 nm to 90 nm;
• and the aluminum nitride nanofiber has an average diameter of 100 nm to 300 nm and a length of 1 μm to 3 μm.