Processing And Characterization Of Carbon Fiber Fabric Reinforced Aluminum Matrix Composite

Fiber reinforced MMCs have excellent mechanical properties and have already showngreat potential through applications in aviation, automotive, mechanical and electronicindustries as a high tensile strength, heat resistant material. To give full play to the fiber’s highperformance, this subject aims to explore a new type of composite with fiber as the fortifierand aluminum alloy as the basis.As a result of the poor wettability and chemical compatibility between aluminum andcarbon fiber, the modification research on carbon fiber was studied by electroless plating.Copper coating was obtained. The main procedures of this coating technique are: cleaning,erosion, sensitization, activation, and electroless plating. This solution is steady and theelectroless copper plating layer is bright and compact, with high binding capacity toaluminum matrix.This paper has made out of carbon fiber fabric include 2D and 3D to increase thealuminum matrix composites, and through numerous tests to determine the process scheme.After the theoretical calculation and experimental analysis, to adjust the experimentalprogram, strictly control the fiber preheat temperature, pouring temperature, mold temperatureand other parameters to achieve the best molding process. The optimum technologyparameters are: 5MPa pressure; 380-400℃fiber preheat temperature; 570℃moldtemperature; 780℃pouring temperature.Microanalysis shows that the carbon fiber is well combined with the interface of thealuminum matrix. Though minor interface reaction is observed, it has little effect on theoverall performance of the composite. Detection of composite, such as tensile strength,plasticity, impact toughness properties found, mechanical properties of composite matrix isimproved to a certain extent. Comparing with the matrix, three-dimensional fabric reinforcedcomposite can increase the tension strength about 15%, and the impacting toughness about14%. The little improvement of strength and toughness generates from the brittleness ofZL102 matrix, whose transverse fibers accelerate the crack growth and offset the reinforcedeffect of fiber. And this clearly shows the direction for further preparation of test.