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采用真空吸渗挤压工艺制备二维连续碳纤维增强镁基(2D-C_f/Mg)复合材料,研究了不同冷却速度下C_f/Mg复合材料中的碳纤维表面形貌、复合材料的硬度和拉伸强度。试验结果表明,较高的冷却速度可降低C_f/Mg复合材料的界面反应程度,减少碳纤维的表面损伤,有助于复合材料的硬度和强度提高。制备的T700碳纤维增强2D-C_f/Mg复合材料的抗拉强度可达450 MPa。
The two-dimensional continuous carbon fiber reinforced magnesium-based (2D-C_f / Mg) composites were prepared by vacuum infiltration extrusion process. The surface morphology of carbon fiber, the hardness and tensile strength of the composites were investigated under different cooling rates strength. The experimental results show that the higher cooling rate can reduce the interfacial reaction of C_f / Mg composites, reduce the surface damage of carbon fiber and improve the hardness and strength of the composites. The tensile strength of the prepared T700 carbon fiber reinforced 2D-C_f / Mg composites can reach 450 MPa.