基于钎焊法制备Cf/Al复合材料工艺研究

Study on peparation of Cf/Al composites based on brazing method

采用钎焊法通过箱式电阻炉和真空热压炉加热成功制备出碳纤维增强铝基(Cf/Al)复合材料,研究钎料成分、加压状态以及加压方法对Cf/Al复合材料成形的影响,并分析其显微结构。结果表明,采用叠层填充HL402钎料,加热到600℃保温15 min,在压力下通过钎焊法使用电阻炉和真空热压炉均可制备出成形较好的Cf/Al复合材料。通过真空热压炉制备出的Cf/Al复合材料,其Cf的间距约为2~4μm,钎料可以充分地填充到Cf间隙中,且Cf轮廓完整并较均匀致密地分布在结合层中。

The carbon fiber reinforced aluminum matrix（Cf/Al）composite was successfully prepared by the brazing method through the box type resistance furnace and the vacuum hot pressing furnace. The influence of the composition of the filler metal,the pressure state and the pressure method on the forming of the Cf/Al composite was studied,and the microstructure of the composites was analyzed. The results show that the good Cf/Al composites can be prepared by using the resistance furnace and the vacuum hot pressing furnace with the laminated HL402 filler metal and heated to 600 ℃ for 15 min under pressure. The Cf/Al composite prepared by a vacuum hot pressing furnace has a distance of Cf about 2-4 μm,and the solder can be fully filled into the gap of Cf,and the contour of the Cf is complete and is more uniform and compact in the binding layer.