METHOD FOR PREPARING ALUMINUM MATRIX COMPOSITE USING NO PRESSURE INFILTRATION

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.