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METHOD FOR PREPARING ALUMINUM MATRIX COMPOSITE USING NO PRESSURE INFILTRATION

机译:无压渗透制备铝基复合材料的方法

摘要

The present invention provides a method for preparing an aluminum matrix composite by infiltrating aluminum into a preform within a short time even without pressurization by using a special apparatus compared with a conventional pressure infiltration method. According to one aspect of the present invention, provided is a method for preparing an aluminum matrix composite using no pressure infiltration, comprising the steps of: preparing a preform comprising a mixture of material powders capable of forming a ceramic through a combustion synthesis reaction; dipping the preform in molten aluminum such that a part of the preform is exposed to the outer environment without being dipped in the molten aluminum; and causing a combustion synthesis reaction inside the perform while infiltrating molten aluminum into the perform.
机译:与常规的压力渗透方法相比,本发明提供了一种通过使用专用设备在短时间内即使不加压就将铝渗透到预成型物中来制备铝基复合材料的方法。根据本发明的一个方面,提供了一种不使用压力渗透而制备铝基复合材料的方法,该方法包括以下步骤:制备预成型坯,所述预成型坯包含能够通过燃烧合成反应形成陶瓷的材料粉末的混合物;将预成型坯浸入熔融铝中,以使一部分预成型坯暴露在外部环境中而不浸入熔融铝中;并且在熔融铝浸入到铸坯中的同时在铸坯内部引起燃烧合成反应。

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