无压渗透法制备颗粒增强铝基复合材料的工艺及渗透机理初探

The Process and the Mechainism of Making Aluminium Matrix Panical Reinforced Composite by Pressureless-infiltration

提出一种制备颗粒增强铝基复合材料的新方法一无压渗透法．采用该法，可在空气气氛下，于８００～１０００℃温度范围内，无需借助外加压力或真空，也不需对增强颗粒进行预处理，可使铝或铝合金液自动地渗入颗粒填料内部，从而形成具有良好结合的复合材料．对其渗透机理进行了探讨．

The new method of making aluminium matrix panical reinforced composite by pressureless-infiltration was described. At 800￣1000℃ without the addition pressure or vacuum,the composite is formed by spontanousinfiltration of malten aluminium or its alloys into a mass of particale filler which without pretreatment in air. Themechanism is also discussed.