Bricking-like bionic composite prepared ceramic reinforced aluminum matrix composite
A technology for strengthening aluminum-based and composite materials, applied in metal processing equipment, transportation and packaging, etc., can solve the problems of long cycle, complicated process, and not reaching the scale of shell nacre, and achieve comprehensive mechanical properties improvement, wide application range, Maintain the effect of high-strength plastic matching
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Embodiment 1
[0038] Take 100 g of pure aluminum powder with a diameter of 10 μm and place it in a stirring ball mill, use absolute ethanol as a solvent, add 4 g of titanate as a ball milling aid, the ball-to-material ratio is 20:1, and ball mill at a speed of 300 rpm for 5 hours. Obtain flaky aluminum powder with a diameter of about 25 μm and a thickness of about 300 nm;
[0039] Take 60g flake aluminum powder and 4.5g flake aluminum oxide powder and mix, wherein the thickness of the flake alumina used is 250nm, the diameter is 10μm, put the mixed powder and 1Kg of agate balls respectively in a 1L drum, and then Mix at a speed of 50 rpm to make the flake aluminum powder and flake alumina powder evenly mixed.
[0040] Finally, the mixed powder was pressed into a green body with a diameter of 40 mm under a pressure of 200 MPa, and then the green body was sintered at 580 ° C for 2 h in an argon atmosphere, and then rolled at a temperature of 440 ° C with a reduction of 80%.
[0041] The room...
Embodiment 2
[0048] Take 100g of pure aluminum powder with a diameter of 20 μm and place it in a stirring ball mill, use absolute ethanol as a solvent, add 4g of titanate as a ball milling aid, the ball to material ratio is 20:1, and ball mill at a speed of 200 rpm for 8 hours. Obtain flaky aluminum powder with a diameter of about 40 μm and a thickness of about 200 nm;
[0049] Take 60g flake aluminum powder and 10g flake alumina powder and mix, wherein the thickness of the flake alumina used is 250nm, the diameter is 10μm, put the mixed powder and 1Kg of agate balls in a 1L drum respectively, and then use 60 Mix at a speed of revolution per minute, so that the flake aluminum powder and flake alumina powder are evenly mixed.
[0050] Finally, the mixed powder was pressed into a green body with a diameter of 40 mm under a pressure of 200 MPa, and then the green body was sintered at 600 ° C for 2 h in an argon atmosphere, and then rolled at a temperature of 500 ° C with a reduction of 80%. ...
Embodiment 3
[0053] Take 100g of pure aluminum powder with a diameter of 5 μm and place it in a stirring ball mill, use absolute ethanol as a solvent, add 4g of titanate as a ball milling aid, the ball to material ratio is 20:1, and ball mill at a speed of 300 rpm for 5 hours. Obtain flaky aluminum powder with a diameter of about 10 μm and a thickness of about 100 nm;
[0054] Get 60g flake aluminum powder and mix with 10g flake boron nitride powder, the thickness 100nm of wherein used flake boron nitride, diameter is 5 microns, the agate ball of mixed powder and 1Kg is placed in the cylinder of 1L respectively, Then mix at a speed of 60 rpm, so that the flake aluminum powder and flake boron nitride powder are uniformly mixed.
[0055] Finally, the mixed powder was pressed into a green body with a diameter of 40 mm under a pressure of 300 MPa, and then the green body was sintered at 540 ° C for 2 h in an argon atmosphere, and then rolled at a temperature of 300 ° C with a reduction of 70%....
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