Nanometer silicon carbide particle reinforced aluminum matrix composite and preparation method thereof
A technology of nano-silicon carbide and particle-reinforced aluminum, which is applied in the field of particle-reinforced aluminum matrix composites to achieve good plasticity, high stiffness and high plasticity
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Embodiment 1
[0026] The volume fraction of the nano-silicon carbide particle content of a kind of nano-silicon carbide particle-reinforced aluminum-based composite material obtained in Example 1 is 6%, and its raw materials are: 1% volume fraction of nano-silicon carbide particles and 99% volume fraction of aluminum Alloy powder, in which nano-silicon carbide particles are made of micro-silicon carbide particles at -20°C and ball-to-material ratio of 20:1, in a ball-milling sealed tank filled with argon gas for 15 hours through zirconia balls with a diameter of 5mm. The purity of the nano-silicon carbide is more than 99.9%, and the particle size is 40nm (DN50); the aluminum alloy powder is 2024 aluminum alloy powder, and the particle size is 8 μm, and its preparation method is:
[0027] Step 1: Under the protection of argon gas, mix the nano-silicon carbide particles and aluminum alloy powder, put them into a sealed ball mill tank, vacuumize the sealed ball mill tank and then fill it with a...
Embodiment 2
[0033] The volume fraction of the nano-silicon carbide particle content of a kind of nano-silicon carbide particle-reinforced aluminum-based composite material obtained in Example 2 is 8%, and its raw materials are: 2% volume fraction of nano-silicon carbide particles and 98% volume fraction of aluminum Alloy powder, in which nano-silicon carbide particles are made of micro-silicon carbide particles at -13°C and ball-to-material ratio of 30:1, in a ball-milling sealed tank filled with argon gas for 19 hours through zirconia balls with a diameter of 6mm The purity of the nano-silicon carbide is more than 99.9%, and the particle size is 44nm (DN50); the aluminum alloy powder is 2024 aluminum alloy powder, and the particle size is 9 μm, and its preparation method is:
[0034] Step 1: Under the protection of argon gas, mix the nano-silicon carbide particles and aluminum alloy powder, put them into a sealed ball mill tank, vacuumize the sealed ball mill tank and then fill it with ar...
Embodiment 3
[0040] The volume fraction of the nano-silicon carbide particle content of a kind of nano-silicon carbide particle-reinforced aluminum-based composite material obtained in Example 3 is 10%, and its raw materials are: 2% volume fraction of nano-silicon carbide particles and 98% volume fraction of aluminum Alloy powder, in which nano-silicon carbide particles are made of micro-silicon carbide particles at -4°C, ball-to-material ratio of 45:1, in an argon-filled sealed tank for ball milling, made by zirconia balls with a diameter of 7mm for 23 hours The purity of the nano-silicon carbide is more than 99.9%, and the particle size is 48nm (DN50); the aluminum alloy powder is 2024 aluminum alloy powder, and the particle size is 10 μm, and its preparation method is:
[0041] Step 1: Under the protection of argon gas, mix the nano-silicon carbide particles and aluminum alloy powder, put them into a sealed ball mill tank, vacuumize the sealed ball mill tank and then fill it with argon g...
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