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Aluminum matrix composites with lightweight, high strength , resistance to corrosion and mechanical properties and good , but with the development of modern industry such as aviation, aerospace and automotive manufacturing , increasingly high performance requirements for materials , carbon fibers , silicon carbide , aluminum matrix composites have been difficult to meet the needs of modern industry . Than conventional carbon fibers , silicon carbide excellent mechanical properties of carbon nanotubes , good prospects as a new type of reinforcement aluminum matrix composites . By powder metallurgy method , respectively, of pure aluminum , 2024 aluminum matrix , carbon nanotubes and its composite prepared with good mechanical properties and tribological properties of carbon nanotubes reinforced aluminum matrix composites . 1. Carbon nanotubes copper processing, by comparing the test to determine the optimal experimental conditions , and ultimately complete nanotube surfaces coated with a layer of copper, in order to optimize the carbon nanotube matrix interface combined . The experiment by powder metallurgy method of preparation of carbon nanotubes reinforced aluminum matrix composite sample to determine the best preparation , aluminum composite density of up to 97% of 2024 aluminum composite material density up to 95% . Experimental specimen hardness and tensile strength tests , the results showed that : pure aluminum and 2024 aluminum composites are 3% volume fraction of carbon nanotubes , the best mechanical properties , hardness and strength have been improved to varying degrees . 4 sample wear performance test results show that : the addition of carbon nanotubes significantly improve the wear properties of composite materials , aluminum and 2024 aluminum composite carbon nanotubes volume fraction than 3% of the lowest wear rate . Also studied the load and sliding speed than the wear rate of the sample , the results show that : the greater the load , the greater the wear rate , the faster the slip rate , the greater the wear rate .
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