Study on the Preparation of 3D Braided Carbon Fiber Reinforced Magnesium Matrix Composites

摘要

The pressure impregnation method is adopted to prepare the three-dimensional braided carbon fiber reinforced magnesium matrix composite under the protection of inert gas. The microstructure of the interface between the surface of carbon fiber and the composite was analyzed by SEM and XRD. The results show that the slight interfacial reaction between the three-dimensional braided carbon fiber with a certain thickness of SiO_2 coating and the magnesium alloy matrix improves the wettability there between and effectively promotes the infiltration of magnesium alloy melt into the three-dimensional braided carbon fiber process.